msm: camera: Add support for low power configuration in camera

Camera may run in a low power background mode. Configure the sensor
to run at lowest clock and vfe to request minimum bandwidth.

Change-Id: Idf6e5fb069c5a3cdbbbddb760614fee4510d81dc
Signed-off-by: Nishant Pandit <npandit@codeaurora.org>
8 files changed