Update fstab for columbia

Change-Id: I818c29d3e2ce311644ba64994135d6da883567da
diff --git a/fstab.emmc b/fstab.emmc
index 38fea06..22151b6 100644
--- a/fstab.emmc
+++ b/fstab.emmc
@@ -1,3 +1,3 @@
-/dev/mmcblk0p3 / ext4 noatime,defaults 0 1
-/dev/mmcblk0p1 /boot ext2 noatime,sync,defaults 0 2
+/dev/mmcblk2p3 / ext4 noatime,defaults 0 1
+/dev/mmcblk2p1 /boot ext2 noatime,sync,defaults 0 2
 tmpfs /var/log tmpfs defaults 0 0