camera_v2: Changes for dual JPEG encoding

1. Set driver state to MSM_JPEG_INIT after session done.
2. When doing reset,perform it to all JPEG hw modules.

Signed-off-by: Kamen Kirov <kkirov@codeaurora.org>
Change-Id: Id6320f47a7c2eeef8eb6911d2c222b85ed3971b1