Revert "galaxys2: back to blob libril"

uups sorry for that

This reverts commit 09b3b149dd89c1f70a7269547c998f4964e05a1d

Change-Id: Iab34ffe99f46b54e28a832cd6c06ee33c3c1db66
Merge "Revert "galaxys2: back to blob libril"" into jb4.2