msm: board: lpm gpio support to mipi driver

lpm gpio support is added to mipi toshiba driver. it will provide
pwm signal to mipi panel driver to control the back light.

Signed-off-by: Nagamalleswararao Ganji <nganji@codeaurora.org>
Signed-off-by: Ronny Schmatzler <schmatzler@googlemail.com>
msm: camera: Remove gpio call back function from board file

Moved camera gpio on and off functions to msm_io_8960 file
Exposure camera gpio numbers from board file to msm_io_8960 file.

Signed-off-by: Kevin Chan <ktchan@codeaurora.org>
Signed-off-by: Ronny Schmatzler <schmatzler@googlemail.com>
Add defines in board.h