Revert "holiday: bump PMEM_SF_SIZE to 64mb to reslove soft-reboots."

This reverts commit 81fb0f0d7d56456a0a896add12ef02f8b8eb80b8.
holiday: force use of shooter pmem sizes

Change-Id: If4a263b8ede728f129f2c65bb50a43270fc616ea