msm: display: Backlight control on 8x25 EVB for qHD panel

Add support for backlight control on 8x25 EVB for qHD panel

Change-Id: I488786b45b844df776952fed4d23b9a4fb337107
Signed-off-by: Padmanabhan Komanduru <pkomandu@codeaurora.org>
6 files changed