[EXP] Unified hlte (had to make some assumptions...)

This changeset assumed the following things:
   system/lib/gsm/*ril.so were from hltexx
   system/lib/cdma/*ril.so were from hltevzw
   vendor/lib/librpmb.so and vendor/lib/libssd.so were assumed to have been erroneously included in proprietary-files.txt

Change-Id: If166c35f3ed43790685db5cc81dab70222294e9c