Camera: Remember the current Touch AF/AEC selection.

When user switches between scene mode Auto to non-Auto,
the touch AF/AEC option is overridden from the UI and the
lower layers intimated to turn off Touch AF/AEC. However
when we switch back to scene mode Auto, the Touch AF/AEC
is turned off although user might have turned it ON before
switching to a non-auto scene mode. We need to remember the
user selection and restore back to that when user comes back
to the auto scene mode.

(cherrypicked from commit 9ff79cf9291dde975a2607adb6ff97d2dc1b0c17 )

Change-Id: I5f306445bc96a52c0f921d75e7a3b6e944bc7858
(cherry picked from commit 913c1bfd3465dc101a3c6ec3271588d895fc82b4)
(cherry picked from commit 63a0c7bcc9abb980a5813c76545b4a4d6acc1ec2)
1 file changed