msm: camera: Add proper error handling during camera open.

During camera open, many sequential operations are performed.
If any of those operations fails, undo the previous
operations in reverse order.

CRs-fixed: 356281
Change-Id: I990def08c6a516b20de5e27e6df3a17f020df06c
Signed-off-by: Ujwal Patel <ujwalp@codeaurora.org>