Revert "M2: (FIXUP): msm: pm: Update spm retention sequence to support per core retention"

 * Fixes lockups and hard freezes. Need to investigate further.

This reverts commit 5f6a2e7bcae7e62d6ec0848309fb9902137adac6.

Change-Id: I3e6edb8dc05400943162cbb7ad6c7c7f8888ea14