ION: fix makefile derp

Change-Id: Ib61ae8ef9c7818e755a6aa6cbee81532a9b2ee61
defconfig: add stockdemand

Change-Id: Id54768f8a9558a2e028c3dc76fbcd147200a87b6
defconfig: switch to XZ

Change-Id: Id7623e3b9c6bd033b4236f6e091bca53dc42c796