msm: camera: Add bulk changes for flash support for sdm845

Migrate the flash changes from mainline.

Change-Id: Ia8401e2d3e658666916beb6cbccdb76aaf8ccb3e
Signed-off-by: Shankar Ravi <rshankar@codeaurora.org>
Signed-off-by: Raja Mallik <rmallik@codeaurora.org>
6 files changed