Revert "Revert "Revert "Added sahlnaskh arabic font to Android.mk & fonts.mk files to actually get the font installed"""

This reverts commit 9f3453f51fd8cf0e52e558ab6a405ab97f39b7bb.

See http://review.cyanogenmod.org/#/c/60251/ for details

Change-Id: I51945edd7a343eed89b4cffd7c49e1cff70f00cb
Merge "Revert "Revert "Revert "Added sahlnaskh arabic font to Android.mk & fonts.mk files to actually get the font installed"""" into kitkat-caf