Update face detection start state based on zsl or normal mode.

While capturing image state of face detection start variable was
set to false. This is because in normal capture mode, preview will
be restarted after image capture during which face detection will
be started again. In case of zsl mode, variable state was set to
false though preview is not restarted. So when user uncheck face
detection option, control was returning without clearing face data.
This check makes sure the state is updated only in non ZSL mode.

Change-Id: I66ad64d17011a25f0d02e77334392f5d3b0abd77
CRs-Fixed: 566252
1 file changed