permissions: Remove some nasty 777s

Anyone could view framebuffer memory...  not good

Probably some of the other 666s in ueventd need additional work,
but changing them all to 660 causes epicfail.

Change-Id: Ia8d148fac425a72d15e40f8d393cd16078974fd0
galaxys2: fix permissions on exynos-mem

Change-Id: Ic951afdd302eea7953e31f2d15de8d31ba3e0043
galaxys2-common: fix group on video nodes

Change-Id: I221b2847e8591523472b863544d1a3c77762b4cf
galaxys2-common: Use open source libsecion.

Change-Id: I2b59d305327aa4ce003ff5d3d8710f6ca22ba5e1
Signed-off-by: angelsl <hidingfromhidden@gmail.com>
Merge https://github.com/CyanogenMod/android_device_samsung_galaxys2-common into wip