Revert "Disable loadable module support"

This reverts commit 5f7a2090813a215271eda4a1ca7b1d9169fbc1ab.
Add support for kexec-hardboot

"Allows hard booting (i.e., with a full hardware reboot) to a kernel
previously loaded in memory by kexec.  This works around the problem of
soft-booted kernel hangs due to improper device shutdown and/or
reinitialization."
More info in /arch/arm/Kconfig.

Original author: Mike Kasick <mike@kasick.org>
These patches are ported from Asus TF201, to which it
was ported by Jens Andersen <jens.andersen@gmail.com>.

Change-Id: Ibee734f61ffa97577bfbcdd9a8cd567bd2d89f32

Signed-off-by: morfic <morfic@gmail.com>
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
cgroup/timer_slack: fix cgroup permission errors

Since the common mounting of cpu and timer_slack into /dev/cpuctl
in commit
https://github.com/boype/kernel_tuna_jb42/commit/f23ab456002c2d3b416260862dbfdb82b031a450
the Android OS cannot move processes across cgoups anymore:

    W/SchedPolicy( 1180): add_tid_to_cgroup failed to write '5949'
    (Permission denied); policy=0

Fix this by implementing an 'allow_attach' handler, according to
this commit:
https://github.com/boype/kernel_tuna_jb42/commit/bb5b603036b99d80527b222dc98eba4ee8341020

Signed-off-by: Boy Petersen <boypetersen@gmail.com>
Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>