Use GCC 4.7

Change-Id: I0b2514a2650008e0fe6f6547bb8d88ab416bdd91
(cherry picked from commit 5de57f23efa691b254bc0ba59c21ca6bbdd29611)
i9300: add selinux policies

Change-Id: I0304c2efeb06b583a28ea9c9dcc874254ee3930f
(cherry picked from commit 094934efdfcbddaa5da12b2c819668559d566b0a)
i9300: selinux: remove vold rules

moved to external/sepolicy

Change-Id: I829824e38b0a98989b35acbfc89ea225b9ce198b
(cherry picked from commit a0ff01fe03f0379c7ea348377190782262147459)