brcm47xx: image: use new (& fixed) FILESYSTEM variable for trx command

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@45313 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/brcm47xx/image/Makefile

@@ -113,7 +113,7 @@ define Build/trx-with-loader
 		-o $@ \
 		-f $(KDIR)/loader.gz \
 		-f $(word 1,$^) \
-		$(call trxalign/$(lastword $(subst ., ,$(word 2,$^))),$(lastword $(subst ., ,$(word 2,$^))))
+		$(call trxalign/$(FILESYSTEM),$(FILESYSTEM))
 endef
 
 define Build/linksys-bin