video: msm: Send ETIMEDOUT on update-notify timeout

Send the ETIMEDOUT errno when the update-notify wait_for_completion times
out. This is required to be able to properly handle the different failure
cases in the functions that use the update notify ioctl.

Change-Id: I0e46b0b0c89f6b2e5beb3fc0ed18ebbb75dfa434
Signed-off-by: Carl Vanderlip <carlv@codeaurora.org>
Signed-off-by: Pravin Tamkhane <pravint@codeaurora.org>