Convert to find7u (Find7 Unified Storage)

Change-Id: Iebd538f7ca9426d2de820a262f64188bcd8966ca
find7: LVM partitioning support (phase 1)

This just adds the LVM prebuilt to recovery and normal ramdisks,
reconfiguration of storage is a separate patch

Change-Id: I45cd5a8a32dd376ab2e94f4270a196d2ee7a21f0

Conflicts:
	device.mk
LVM: Initial storage & init changes