Various fixes

DeviceSettings: Add polish translation (thx: http://review.cyanogenmod.org/#/c/34742/)
DeviceSettings: Set default mDNIE mode to UI
media_codecs: Drop Samsung codecs, use only NVidia ones
overlay: Add modified GPS header (thx: Entropy512)

Change-Id: I8e8cb9a8d621ffa0a55e0d4fe63367e42a97850d