SpaceCast: Boot from hard disk

Remove the rootfs partitions from the NOR flash. In consequence simpleramfs will
mount the rootfsX partition on the hard drive. Also extend the kernel partitions
from 5MB to 6MB

Change-Id: Iebc816ff86bb75eb03f7b7d58dc4e3ac486f9880
diff --git a/arch/arm/boards/optimus/env_spacecast/config b/arch/arm/boards/optimus/env_spacecast/config
index 3881b2e..b98a9e6 100644
--- a/arch/arm/boards/optimus/env_spacecast/config
+++ b/arch/arm/boards/optimus/env_spacecast/config
@@ -5,7 +5,7 @@
 	. /env/ethaddrs
 fi
 
-nor_parts="128k(uloader)ro,512k(loader0)ro,512k(loader1)ro,128k(env),2M(hnvram),5M(kernel0),5M(kernel1),25M(rootfs0),25M(rootfs1),-(norreserved0)"
+nor_parts="128k(uloader)ro,512k(loader0)ro,512k(loader1)ro,128k(env),2M(hnvram),6M(kernel0),6M(kernel1),-(norreserved0)"
 nor_device="comcertoflash.0"
 
 autoboot_timeout=2