BoardConfig: use 4.8 toolchain for kernel
system.prop: add singlepdp to ril prop (paulb-nl & Flinny)

Change-Id: I6a7c0c6d5c1e9f24982236488bc7ee5d0d87ab5c
remove mms overlay

Change-Id: I0ecbbd6bc676394b8ad26b4fb89ba36de709e30c
full_ace: update fingerprint