Revert "mutex: Make more scalable by doing less atomic operations"

This reverts commit 99f51b7eb130d674c925b22845b9823f3b4cb21d.
Revert "i.MX25 GPT clock fix: ensure correct the clock source"

This reverts commit 2980b6d38fbf9856dfda0bf39f4588141d90be57.
Revert "storage_common.c: Add missing codes to support DriveDroid"

This reverts commit 90764cbe171f8e9586b7593708637de39f2cfbb9.