Fix bug linux compile error.

	modified:   arch/arm/kernel/head.S
	modified:   arch/arm/mm/proc-v7.S
	modified:   include/linux/irqflags.h
2014-12-06 temp comment
20141206 study-1
Merge branch 'master' of https://github.com/arm11a/linux_kernel
q
20141206 master 의 스터디 주석을 merge