The mainline Sync File implementation doesn't have wait ioctl anymore.
Only poll is supported now, and we already have a test for that.
Test: Sync unit tests still passes.
Change-Id: Iadde7b2173024af9b8d20316e640297cf214c645
Upstream modifications in K3.12 to the sw_sync driver set O_CLOEXEC on
the fd's returned by the SW_SYNC_IOC_CREATE_FENCE ioctl, therefore we
check the return of fcntl() for a non-negative value instead of strictly 0.
Change-Id: If4c82750fcc0aa3a57f243fa2a94691e3150e4a4