custom ril

Change-Id: I3e249a6b5f79002ff6870acf48c269407e0ce276
update BoardConfig

Change-Id: If99693451e76d8738ed38bb71a6de1e2401e47db
code cleanup

Change-Id: Iba6044c44b18b9d1794a66fe2bc534f8b75b64e9