rcu: Update stray documentation references to rcu_dynticks_eqs_{enter, exit}()

rcu_dynticks_eqs_{enter, exit}() have been replaced by their
context-tracking counterparts since commit:

  171476775d ("context_tracking: Convert state to atomic_t")

Update the stray documentation references.

Signed-off-by: Valentin Schneider <vschneid@redhat.com>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Neeraj Upadhyay <neeraj.upadhyay@kernel.org>

Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst

@@ -147,8 +147,8 @@ RCU read-side critical sections preceding and following the current
 idle sojourn.
 This case is handled by calls to the strongly ordered
 ``atomic_add_return()`` read-modify-write atomic operation that
-is invoked within ``rcu_dynticks_eqs_enter()`` at idle-entry
-time and within ``rcu_dynticks_eqs_exit()`` at idle-exit time.
+is invoked within ``ct_kernel_exit_state()`` at idle-entry
+time and within ``ct_kernel_enter_state()`` at idle-exit time.
 The grace-period kthread invokes first ``ct_rcu_watching_cpu_acquire()``
 (preceded by a full memory barrier) and ``rcu_watching_snap_stopped_since()``
 (both of which rely on acquire semantics) to detect idle CPUs.

Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg

@@ -607,7 +607,7 @@
        font-weight="bold"
        font-size="192"
        id="text202-7-5-3-27-6"
-       style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcu_dynticks_eqs_enter()</text>
+       style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">ct_kernel_exit_state()</text>
     <text
        xml:space="preserve"
        x="3745.7725"
@@ -638,7 +638,7 @@
        font-weight="bold"
        font-size="192"
        id="text202-7-5-3-27-6-1"
-       style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcu_dynticks_eqs_exit()</text>
+       style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">ct_kernel_enter_state()</text>
     <text
        xml:space="preserve"
        x="3745.7725"

Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg

@@ -977,7 +977,7 @@
        font-weight="bold"
        font-size="192"
        id="text202-7-5-3-27-6"
-       style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcu_dynticks_eqs_enter()</text>
+       style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">ct_kernel_exit_state()</text>
     <text
        xml:space="preserve"
        x="3745.7725"
@@ -1008,7 +1008,7 @@
        font-weight="bold"
        font-size="192"
        id="text202-7-5-3-27-6-1"
-       style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcu_dynticks_eqs_exit()</text>
+       style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">ct_kernel_enter_state()</text>
     <text
        xml:space="preserve"
        x="3745.7725"

Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg

@@ -3107,7 +3107,7 @@
          font-weight="bold"
          font-size="192"
          id="text202-7-5-3-27-6"
-         style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcu_dynticks_eqs_enter()</text>
+         style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">ct_kernel_exit_state()</text>
       <text
          xml:space="preserve"
          x="3745.7725"
@@ -3138,7 +3138,7 @@
          font-weight="bold"
          font-size="192"
          id="text202-7-5-3-27-6-1"
-         style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">rcu_dynticks_eqs_exit()</text>
+         style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier">ct_kernel_enter_state()</text>
       <text
          xml:space="preserve"
          x="3745.7725"