aries: use uncompressed ramdisk

The kernel already performs LZMA compression on the whole ramdisk,
so compressing it once using gzip increases the size. Using
uncompressed ramdisk reduced the size from 7.4 MB to 5.4 MB.

Requires http://review.cyanogenmod.org/63722

Change-Id: I8dcd03a4011367b68c96efb23f56348af12da79b
Merge branch 'cm-11.0' into kk_mkt