dosfstools: unbreak build

Unbreak build after e8352988 (make sure install targets aren't run everytime)

Reported-by: Darcy Watkins <DWatkins@tranzeo.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

CHANGES

@@ -1,6 +1,6 @@
 2010.05, Not yet released
 
-	 Updated/fixed packages: squashfs
+	 Updated/fixed packages: dosfstools, squashfs
 
 2010.02, Release February 26th, 2010:
 

package/dosfstools/dosfstools.mk

@@ -32,8 +32,7 @@ $(DOSFSTOOLS_DIR)/.built : $(DOSFSTOOLS_DIR)/.unpacked
 	$(STRIPCMD) $(DOSFSTOOLS_DIR)/$(DOSFSLABEL_BINARY)
 	touch $@
 
-$(TARGET_DIR)/$(MKDOSFS_TARGET_BINARY): # $(DOSFSTOOLS_DIR)/.built
-	echo foo
+$(TARGET_DIR)/$(MKDOSFS_TARGET_BINARY): $(DOSFSTOOLS_DIR)/.built
 	cp -a $(DOSFSTOOLS_DIR)/$(MKDOSFS_BINARY) $@
 	touch -c $@