Camera: Fix beauty mode & slow shutter indicator

* Forward ported the missing code from cm-10.2
* Original commit: https://github.com/CyanogenMod/android_packages_apps_Gallery2/commit/fd78d710c887fd17cfccc0b912c4230d28d64135

Change-Id: Ifb798b7df0250eac45cf7d46acf338364d4c18e2