Block: Added BFQ Scheduler

Signed-off-by: Amperific <amperific@gmail.com>
block: update to BFQ v6

Signed-off-by: Amperific <amperific@gmail.com>

Conflicts:
	arch/arm/configs/titanium-kiss-usbhost_defconfig
	block/Kconfig.iosched
	block/bfq-ioc.c
	block/bfq-iosched.c
	block/bfq-sched.c
	block/bfq.h
	block/cfq-iosched.c
	block/deadline-iosched.c
	fs/ioprio.c
	include/linux/iocontext.h
Revert "block: update to BFQ v6"

This reverts commit bde2bf42458e816680e1662cdc5e8d5341652cf6.
block: Fix BFQ Derp

Signed-off-by: Amperific <amperific@gmail.com>
add SIOplus i/o scheduler

Signed-off-by: Amperific <amperific@gmail.com>

Conflicts:
	block/Kconfig.iosched
	block/Makefile
	include/linux/elevator.h