ANDROID: GKI: add percpu_rwsem vendor hooks

When a writer has set sem->block and is waiting for active readers
to complete, we still allow some specific new readers to entry
the critical section, which can help prevent priority inversion
from impacting system responsiveness and performance.


Bug: 353651776
Bug: 334851707
Bug: 353651776

Change-Id: I9e2a7df1efb326763487423d64bcf74d8dec23f8
Signed-off-by: zhujingpeng <zhujingpeng@vivo.com>
(cherry picked from commit 458cdb59)