Revert "kernel: do not assume arch is arm"

This reverts commit 3d7cb5009ebbc25a6438a23a21ebb101bca17588.
Revert "For user builds, use a release build id in the description if one exists"

This reverts commit c23d97dee023de953a75cb11ee8434144fee349d.
Revert "For user builds, use a release build id as the incremental if one exists"

This reverts commit 2827e80e5fc5025cc511fdcc5f0866198bd58351.
Revert "kernel: add support for bzImages"

This reverts commit 3929a21da89f11ff44fc5514f99edb9f4fd5199e.
Merge remote-tracking branch 'cm/cm-10.2' into cm-10.2

Conflicts:
	envsetup.sh
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
Ignore LOCAL_AAPT_INCLUDE_ALL_RESOURCES on mdpi & ldpi devices

Ensures that certain packages don't include unneeded hdpi or higher
assets.

Change-Id: I8e62486f21382e21ec8a587ce96b2383761aad3a
releasetools: add squisher hook

Change-Id: Id90cea9f1db10a6979419d05e1b6905647da2534