Sync libnfc-brcm.conf with latest release 4.4 release

According to the Google Play edition

Change-Id: I8f98532c78b7529561a8e7e59f861ac08b9ccb05
Enable ZSL

Move overlay from Gallery2 to Camera2, and remove all the options except
enable zsl since the rest don't exist (anymore/yet)

Change-Id: Ia80504f25a2c2f18be93d0c9cb07fd1af716e818