linux-phytec-ti

ARM: OMAP2+: pm33xx-core: Add context/save restore for am43xx prm

In order to ensure IO daisy chain wake sources will continue to function
after an RTC+DDR cycle, add calls to save and restore the necessary PRM
registers that hold the IO wake configuration bits. Otherwise, IO daisy
chain will no longer function after these registers lose context during
RTC+DDR mode.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>