soc/intel/cannonlake: Implement pmc_soc_restore_power_failure as per EDS

TEST=CNL_RVP is able to power on after reconnecting power supply.

Change-Id: I41e655fe79d958cce9e627ea2f2380185364ab19
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/22840
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
1 file changed