Some OMAP PRCM updates for 3.5.  Includes some clock, clockdomain,
powerdomain, PRM, and CM changes.
Merge branches 'clock_am35xx_cleanup_3.5', 'prm_cm_devel_a_3.5', 'clock_devel_a_3.5' and 'pwrdm_clkdm_cleanup_3.5' into prcm_devel_a_3.5