[CE-226] make docker fails

Recent changes to Makefile breaks `make docker`
This PR provies the required fix.

Change-Id: I825f5b2f2052d00398a3d92fe5d86a01cf8f4cbc
Signed-off-by: Krishna Harsha Voora <krishvoor@in.ibm.com>

Makefile

@@ -113,8 +113,8 @@ build/docker/%/$(DUMMY): ##@Build an image locally
 	docker build -f $(@D)/Dockerfile \
 		-t $(IMG_NAME) \
 		-t $(IMG_NAME):$(IMG_TAG) \
-		. ; \
-	@touch $@
+		. ;
+	@touch $@ ;
 
 build/docker/%/.push: build/docker/%/$(DUMMY)
 	@docker login \