linux-phytec-ti

OMAP4: CM: Add CM accesor api for bitwise control

Add new OMAP4 CM accesor apis to set/clear and read
bitfields (based on mask) from CM registers.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>