Revert "locking/local_lock: Make the empty local_lock_*() function a macro."

With volatile removed from arch_raw_cpu_ptr() the compiler no longer
creates the per-CPU reference. The usage of the macro can be reverted
now.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220328145810.86783-3-bigeasy@linutronix.de