msm: HTC: m4: revert to using older pmic structures

Change-Id: I78eb7913dd0b2a79cbc9ce9bfd07bac671e61fd9
msm: HTC: m4: remove extra HTC keypad bits

Change-Id: Iffe97f231d4b9b62fad37030332a7fc0aabb9265
msm: HTC: m4: remove wifi bus scaling

Change-Id: I7d10b56316def153c91c5b8000d11882e6976b2d