msm: board-msm7627a-bt: Reduce the IO pad(VDD_PX2) leakage on 8x25

On 8x25 BT SYS RST pin is not based on GPIO Expander, due to
which the API's which we are using are not configuring the GPIO
properly while turning off Bahama.
GPIOs from I/O expander being managed fully by apps proc,
so they doesn't need tlmm config.

CRs-fixed: 338053
Change-Id: Ia128855403cda26b68f2b749431d6c5d7419361e
Signed-off-by: Ram Mohan Korukonda <rkorukon@codeaurora.org>