Turn off memory cgroups.

Android intended to use memory cgroups to bias swapping towards explictly
named background processes, but this is having adverse performance
consequences during global kernel reclaim. Fixing usage of cgroups
will require a lot of work, so turn off cgroups entirely until
we come up with the proper solution.

Bug 18248535
Signed-off-by: Riley Andrews <riandrews@google.com>

Change-Id: I37578de6fad186b6f43c8dc7aaf187a5101edd5b
update defconfig
Merge branch 'android-tegra-flounder-3.10-lollipop-release' into ElementalX-1.00