ARM: OMAP: Update clock framework

Sync with linux-omap tree. Updates clock framework to reset unused clocks
with a late_initcall.

Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --cc arch/arm/mach-omap/Kconfig
Simple merge

diff --cc arch/arm/mach-omap/clock.c
Simple merge

diff --cc arch/arm/mach-omap/clock.h
Simple merge