Tuned All I/O Govs to deliver better performance for ANDROID. we want to give little more time to finish read/write before sync so it's may prevent lag if sio/vr/zen/deadline govs used.

noop/fifo donr have any controls.
and row/bfq/cfq code not allow much tuning.

cfq + bfq made for HDD DISKS so we can disable them for good.
all the rest ok for android ssd flash cards.

Conflicts:

	block/deadline-iosched.c
	block/sio-iosched.c
	block/vr-iosched.c
	block/zen-iosched.c