au1000: create sysupgrade binary for each file system type

This patch should prevent overriding of sysupgrade binaries in the bin directory
if we build images for more then one file system type.

Discussion:

https://lists.openwrt.org/pipermail/openwrt-devel/2013-October/022108.html

Signed-off-by: Philipp Borgers <borgers@mi.fu-berlin.de>

SVN-Revision: 38674

target/linux/au1000/image/Makefile

@@ -62,7 +62,7 @@ define Image/Build
 	$(CP) $(KDIR)/root.$(1) $(BIN_DIR)/$(IMG_PREFIX)-$(1).fs
 	$(CP) $(KDIR)/kernel.flash.srec $(BIN_DIR)/$(IMG_PREFIX)-vmlinux-flash.srec
 	$(CP) $(KDIR)/kernel.ram.srec $(BIN_DIR)/$(IMG_PREFIX)-vmlinux-ram.srec
-	tar -C $(BIN_DIR) -cvzf $(BIN_DIR)/$(IMG_PREFIX)-sysupgrade.bin $(IMG_PREFIX)-vmlinux.bin $(IMG_PREFIX)-$(1).fs
+	tar -C $(BIN_DIR) -cvzf $(BIN_DIR)/$(IMG_PREFIX)-$(1)-sysupgrade.bin $(IMG_PREFIX)-vmlinux.bin $(IMG_PREFIX)-$(1).fs
 ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
 	$(call Image/Build/Initramfs)
 endif