msm: camera: isp: Add changes for dynamic clock/BW update

Add framework to parse the clock and BW update Meta config and
update the VFE HW using that.

Change-Id: I96276a125e8ff1e26b1856a5059e5109da2b3f16
Signed-off-by: Harsh Shah <harshs@codeaurora.org>
Signed-off-by: David Dai <daidavid1@codeaurora.org>
Signed-off-by: Rajesh Sastrula <vrajesh@codeaurora.org>