ARM: bring back some of the compiler optimizations
Quiet down the dmesg output, con't

Samsung really likes noisy kernels! Fix a few random typos, too.
block: SIO I/O Scheduler

From https://github.com/waninkoko/sio-iosched.git ; doesn't seem to
have much in the way of changes nor activity in the last few months
but is apparently considered latest and most-stable version

Change-Id: Ic062f67379eed202bf5ba50e121619ae3225981a

Conflicts:
	block/Kconfig.iosched
	block/Makefile