ANDROID: Add a vendor hook that allow a module to modify the wake flag

 android_vh_do_wake_up_sync:
  To modify the mode value of __wake_up_sync_key

 android_vh_set_wake_flags:
  To modify the wake flag from a module

Bug: 181743516
Bug: 263838089
Signed-off-by: Namkyu Kim <namkyu78.kim@samsung.com>
Change-Id: I972e2469c3f139373d21f1e8c85974763388a693
(cherry picked from commit 97368fc2)
(cherry picked from commit 0d0f0c50)
[Dongseok Yi: Moved into kernel/sched/vendor_hooks.c per commit
    5f657b04 ("ANDROID: subsystem-specific vendor_hooks.c for
    sched")]
Signed-off-by: Dongseok Yi <dseok.yi@samsung.com>