Revert "Make genlock ICS compatible"

This reverts commit bdfbb36e849aff70d46d673ffb0fcce8709c534d.
Revert "base: genlock: allow synchronization with a single gralloc handle"

This reverts commit 844ee28f3a598e671737513dcdc5ba7e417ce9c4.

Conflicts:

	include/linux/genlock.h