mvebu: fix rb5009upr+s+in supported devices in DTS

It allows to sysupgrade from generic rb5009 image to specialized rb5009upr
without image checks fail.

Signed-off-by: Carlo Filippi <carlo2007@gmail.com>

Author: carlo2007

target/linux/mvebu/image/cortexa72.mk

@@ -89,7 +89,7 @@ define Device/mikrotik_rb5009upr
   $(call Device/mikrotik_rb5009)
   DEVICE_DTS := armada-7040-rb5009upr
   DEVICE_MODEL := RB5009UPr+S+IN
-  SUPPORTED_DEVICES += mikrotik,rb5009upr
+  SUPPORTED_DEVICES += mikrotik,rb5009
 endef
 TARGET_DEVICES += mikrotik_rb5009upr