Replace PPC specific set/clear_bits API with standard
bit twiddling so driver is portalable outside PPC.
Signed-off-by: NMadalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: NClaudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: NRoy Pledge <roy.pledge@nxp.com>
Reviewed-by: NCatalin Marinas <catalin.marinas@arm.com>
Signed-off-by: NLi Yang <leoyang.li@nxp.com>