ripout lge changes from lowmemorykiller

  - use jb_rel_2.0.3 lowmemorykiller

Change-Id: I642478cee1b9cc7474ab0e2a188c289106fb25b8
[M4/U0] Updated defconfig

Change-Id: Id4be095d2eb8081fb7daea63d13535df374cca8b
[M4/U0] Update V4L2 overlay buffer size for our device

 - forgot to do this earlier

Change-Id: I32afa989a817bf2ff198707bdb752406bce4463a
Merge branch 'android-msm-3.4-kk' of https://github.com/TeamHackLG/lge-kernel-lproj into android-msm-3.4-kk