ASoc: msm8960: Add msm8960AB board specific change

- GPIOs 23, 35 are used for headset mic on msm8960
- Do not configure GPIOs 23, 35 on msm8960AB target
  for headset mic, as these GIPOs are used for FAN
  external VDD_CX regulator control

Change-Id: I9320e2223fef2476c6ce7a8ccd38ef9555ebe616
Signed-off-by: Jayasena Sangaraboina <jsanga@codeaurora.org>