theme 540x960: update for twrp2.6

Change-Id: If35574de17f8c66db19d0048502675a179f94461
disable curtain

Change-Id: I4f22936e7d5430c9eebd30aaab6f8d1750e8e2e9
enable relink for libext4_utils if HAVE_SELINUX selected

Change-Id: I32eb6131b91a40f4fc300144424409f1beb2cdb1
libext4_utils linking changes + version changes

Change-Id: I56e140911f5ecc939c66d193b035fb9b78efa7f4