msm: camera: Enhance the spi utils

- Add support for more spi utils
read_burst, write, write_burst, device status
- Enhance the tx read wrapper with different packing
for command and data.

Change-Id: Ic3dcb36de59c840a83993376f24802b15f34c0bb
Signed-off-by: Nishant Pandit <npandit@codeaurora.org>