FIXME: allow ALL_PREBUILTS to be used again

Change-Id: Ia974254a3ff6ccaaaf756a31c91724c7a5550827
Merge remote-tracking branch 'cm/cm-10.2' into cm-10.2
Merge remote-tracking branch 'cm/cm-10.2' into cm-10.2
Merge remote-tracking branch 'cm/cm-10.2' into cm-10.2
Merge remote-tracking branch 'cm/cm-10.2' into cm-10.2
Merge remote-tracking branch 'cm/cm-10.2' into cm-10.2
Merge remote-tracking branch 'cm/cm-10.2' into cm-10.2
Merge remote-tracking branch 'cm/cm-10.2' into cm-10.2
Merge remote-tracking branch 'cm/cm-10.2' into cm-10.2
Merge remote-tracking branch 'cm/cm-10.2' into cm-10.2
Merge remote-tracking branch 'cm/cm-10.2' into cm-10.2
Merge remote-tracking branch 'cm/cm-10.2' into cm-10.2
Merge remote-tracking branch 'cm/cm-10.2' into cm-10.2
Merge remote-tracking branch 'opensemc/cm-10.2' into cm-10.2
Merge remote-tracking branch 'opensemc/cm-10.2' into cm-10.2
Merge remote-tracking branch 'pac/cm-10.2' into cm-10.2
Merge https://github.com/witti96/android_build into cm-10.2