ls990: hex liblgderp into libril, add missing bt firmware

Change-Id: I47b001abb4bcc18334e08552276e3cef759483ed
Merge pull request #59 from invisiblek/ls990

ls990: hex liblgderp into libril, add missing bt firmware
Merge branch 'cm-12.0' of https://github.com/TheMuppets/proprietary_vendor_lge into cm-12.0