mtd: enable wrgg support for ath79

This is required for the D-Link DAP-2695-A1.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

package/system/mtd/src/Makefile

@@ -8,7 +8,7 @@ obj.wrg = wrg.o md5.o
 obj.wrgg = wrgg.o md5.o
 obj.tpl = tpl_ramips_recoveryflag.o
 obj.ar71xx = trx.o $(obj.seama) $(obj.wrgg)
-obj.ath79 = $(obj.seama)
+obj.ath79 = $(obj.seama) $(obj.wrgg)
 obj.gemini = $(obj.wrgg)
 obj.brcm = trx.o
 obj.bcm47xx = $(obj.brcm)