rcu: Use IS_ENABLED() to simplify rcu_bootup_announce_oddness()
rcu: Use IS_ENABLED() to simplify rcu_bootup_announce_oddness()

This commit gets rid of some inline #ifdefs by replacing them with
IS_ENABLED.

Signed-off-by: Paul E. McKenney <1e0ce936bb9b355d257bf5790d2513c3f28be22b@linux.vnet.ibm.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs