msm: camera: lrme: Add lrme driver implementation

Add camera Low Resolution Motion Estimation driver implementation
to enable LRME hw functionality. LRME HW block analyzes TAR and REF
frames to get motion estimation.

Change-Id: I2e5ac866430c087a956fa72f11e74bda4adc1bfa
Signed-off-by: Junzhe Zou <jnzhezou@codeaurora.org>