Revert "Partially revert "msm: cpr-regulator: remove register save and restore for suspend and resume""

This reverts commit 591a86000689ff07760e60c10f882f10cc366991.
Revert "dts: Disable allow-synced-levels"

This reverts commit e985ced5555a3f94b3efe388dd9c912e9377b7bf.