msm: adv7533: register with dba (Display Bridge Abstract)

Register ADV7533 driver with DBA (Display Bridge-chip Abstraction)
module so that interface drivers can utilize functionality exposed
by this driver.

Change-Id: Ife0b94acfc5d1c8108ffff8a320228224ab29eaf
Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
Signed-off-by: Siddharth Zaveri <szaveri@codeaurora.org>