Restore docs "treewide: Rename rcu_dereference_raw_notrace() to _check()"

This restores docs back in ReST format.
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
[ paulmck: Added Joel's SoB per Stephen Rothwell feedback. ]
[ paulmck: Joel approved via private email. ]
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

Documentation/RCU/Design/Requirements/Requirements.rst

@@ -1997,7 +1997,7 @@ Tracing and RCU
 ~~~~~~~~~~~~~~~
 
 It is possible to use tracing on RCU code, but tracing itself uses RCU.
-For this reason, ``rcu_dereference_raw_notrace()`` is provided for use
+For this reason, ``rcu_dereference_raw_check()`` is provided for use
 by tracing, which avoids the destructive recursion that could otherwise
 ensue. This API is also used by virtualization in some architectures,
 where RCU readers execute in environments in which tracing cannot be