EMU_UART: clean up

Change-Id: I919e201b52c49b317d78e0a8efcaa2bbb24b80bd
defconfig: add edison (Atrix2) WIP

Change-Id: If5cabf2ba7ca67e055fc116e31558f6e0a59eb16
merge CyanogenMod

Change-Id: Idb7e719d22b61633b68b08b0d233536a1cb1a389