Allow Device specific ramdisk address

Change-Id: If0bb3d3a2b51f87a92c0b657fbc6d0277ce53532

Conflicts:

	core/Makefile
Add ext2, ext3, and vfat to releasetools

Support some non-standard partition that may be found in recovery.fstab

Change-Id: I0026a1d3ae5d432db10150d1a15f7bc8e7a6054b