Merge tag 'omap-for-v3.8/cleanup-timer-signed' into omap-for-v3.8/tmp-merge

Timer clean-up to get us closer to moving timer code to drivers,
and to get rid of CONFIG_OMAP_32K_TIMER and rely on the board
or devicetree provided timer configuration.

Note that these changes are on top of the recent timer fixes.

Conflicts:
	arch/arm/mach-omap2/board-cm-t3517.c