apq8084: gpio: Install display specific gpios

Add new display specific gpios in the list of gpiomux configure entries.
These gpios are needed for different functionalities of working display.
i.e panel power, back-light power etc.

Change-Id: Ia8b06fa726447f6298fd19c81ad0497874b04fdb
Signed-off-by: Ujwal Patel <ujwalp@codeaurora.org>