FROMLIST: binder: Use wake up hint for synchronous transactions.

(from https://patchwork.kernel.org/patch/9817747

)

Use wake_up_interruptible_sync() to hint to the scheduler binder
transactions are synchronous wakeups. Disable preemption while waking
to avoid ping-ponging on the binder lock.

Change-Id: I041dd798f3d0c4c15aa461e4e6d71dc270e1ca86
Signed-off-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Omprakash Dhyade <odhyade@codeaurora.org>