Specify -mcpu=cortex-a15 for krait CPU variants.

Bug: 11178216

Change-Id: I9922e4cd5ba27e3857798aae5c84299e26e054ea
build: Store no_separate_recovery flag in misc_info

This may be needed during a signing process.

Change-Id: I0ab6f0e615f64c0529e605c2fa62fabf1b1ec52b
don't use aosp host file

Change-Id: Id3f23a6b4ed562eb945c7ee53b9c8813437ea957
don't build voicedialer 1.2

Change-Id: Ia9a1ec7f0e9f66bf082f64675c1ded9bd65fdc7b