lockdep: Clarify size for LOCKDEP_*_BITS configs

lockdep: Clarify size for LOCKDEP_*_BITS configs

The LOCKDEP_*_BITS configs control the size of internal structures used
by lockdep. The size is calculated as a power of two of the configured
value (e.g. 16 => 64KB). Update these descriptions to more accurately
reflect this, as "Bitsize" can be misleading.

Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Waiman Long <longman@redhat.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Acked-by: Waiman Long <longman@redhat.com>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/20241024183631.643450-3-cmllamas@google.com