aspeed: Add udev mtd rules to machine recommends

These udev rules are useful outside of fw_printenv, which is how we
currently include them, so bring them in with the common machine type.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Change-Id: I6e9c192983fcbaaae598d0b325efc779c17b9648
diff --git a/conf/machine/include/aspeed.inc b/conf/machine/include/aspeed.inc
index 946eebc..05e4658 100644
--- a/conf/machine/include/aspeed.inc
+++ b/conf/machine/include/aspeed.inc
@@ -13,7 +13,7 @@
 INITRAMFS_IMAGE ?= "aspeed-image-initramfs"
 INITRAMFS_FSTYPES ?= "cpio.xz"
 
-MACHINE_EXTRA_RRECOMMENDS += "udev-aspeed-vuart"
+MACHINE_EXTRA_RRECOMMENDS += "udev-aspeed-vuart udev-aspeed-mtd-partitions"
 
 MACHINEOVERRIDES =. "aspeed:"