BoardConfig: Disable ARM pie to fix front facing camera

Change-Id: If84c83e6c37980fc33c426e26c3a46e5fbe79afe
BoardConfig: Build with GCC 4.6 for now until we can figure out how to boot
with PIE disabled using 4.7

Change-Id: Ic81213f8be4b87845aa2ba81a63202e820beb5fa