Install kernels on partition 12 on arm
Install kernels on partition 12 on arm

This is needed on some ARM boards where ext2 filesystem reading isn't an option,
and where verified boot isn't in use, i.e. with legacy firmware. x86 stores the
kernel here as well.

BUG=none
TEST=build_image on an arm board and check contents for vmlinuz.A and vmlinuz.uimg.A on
partition 12
CQ-DEPEND=I81df8471fba34e264ada8fd6f12122d87fbf22d9

Change-Id: I39541644845dde4ff6ddc288afa0ed339ab0d05b
Signed-off-by: Olof Johansson <13dc431ca3b0f062f888def8f8ec4662ec608f7d@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/12996

mjg59/scripts,BugRoger/scripts,smilart/scripts,sigma/coreos-scripts,bcwaldon/coreos-scripts,mischief/scripts,andrejro/coreos--scripts,vmware/coreos-scripts,bcwaldon/coreos-scripts,zhang0137/scripts,marineam/coreos-scripts,endocode/scripts,mischief/scripts,nicescale/scripts,gtank/scripts,zhang0137/scripts,smilart/scripts,nicescale/scripts,mjg59/scripts,crawford/scripts,coreos/scripts,vmware/coreos-scripts,gtank/scripts,endocode/scripts,BugRoger/scripts,smilart/scripts,endocode/scripts,fivethreeo/scripts,crawford/scripts,BugRoger/scripts,mischief/scripts,fivethreeo/scripts,marineam/coreos-scripts,trnubo/scripts,sigma/coreos-scripts,glevand/coreos--scripts,marineam/coreos-scripts,crawford/scripts,vmware/coreos-scripts,nicescale/scripts,mjg59/scripts,andrejro/coreos--scripts,gtank/scripts,coreos/scripts,trnubo/scripts,bcwaldon/coreos-scripts,zhang0137/scripts,trnubo/scripts,glevand/coreos--scripts,fivethreeo/scripts,sigma/coreos-scripts,andrejro/coreos--scripts