MIPS: pm-cps: Select CONFIG_MIPS_CPC

MIPS: pm-cps: Select CONFIG_MIPS_CPC

The pm-cps code can run without a CPC, although will be limited to using
only the 2 wait idle states. However the code does check for CPC
presence, and in order to work optimally the CPC support is needed. So
select it.

Signed-off-by: Paul Burton <[email protected]>
Reviewed-by: Markos Chandras <[email protected]>
Cc: [email protected]
Patchwork: https://patchwork.linux-mips.org/patch/7279/
Signed-off-by: Ralf Baechle <[email protected]>