remove overclock module

(cherry picked from commit 7bc2df30c69c69131847e84af64fd50e5db6200f)

Change-Id: I6df5688c73167e99b4f4ee8a9c5e7e3bb82fe10b
Fix chargeonly mode

(cherry picked from commit 999c6dab9caaaa83e06918c0f1a1b7137ed1f957)

Change-Id: I4758467366c7149beaa1af083d71a311b1fd7521