Allow msm8226 to use same functions as msm8974

These features were restricted to msm8974 only when porting
changes for msm8960

Change-Id: I67807a3e73495e4701b2ed8c5ebe17c241ec5e13
Delete duplicated declarations

Change-Id: I8f35f532435f778a37d7f7acb41ae9cb7435531b