msm: 8974: add MHL device discovery flag
msm: 8974: add MHL device discovery flag

This change stores a static flag for keeping MHL device
discovery and makes the driver flexible to function in either
one of the modes. It would be very simple to make this dynamically
configurable through boot param or module param.

Change-Id: If3915c5861e61bc572a9b4e239a6133e5e9a138b
Signed-off-by: Manoj Rao <8e3d629b389a351bc9ec544515e25783a6118870@codeaurora.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas