Revert "lock only registers that we use"

This reverts commit 4a69676a05d586a31032e913b8f4bd597e30dc4a.
Revert "sound_control: add workaround for sound boost resets. Based on https://github.com/faux123/Nexus_5/commit/33407fd2d63290540eb0054bc7c6611f2080ea8b"

This reverts commit 6c8f32b980d18f943a3e5789c69eaa25baecb5b6.
Revert "sound_control: just some cosmetic changes."

This reverts commit 225c753f3738201257a1786edcd36b7829217d83.
Revert "sound_control: update how the new values get applied writing and reading them directly from the tabla registries. This will fix the breakage caused by 4.3."

This reverts commit ba4491ac005f7e448fa9da280ea20bd8b4396b52.
Revert "sound_control: add basic sound control."

This reverts commit ed7177a1ff30b6264760a942950125dc63a2f3b8.