Add DOCKER_BUILD_ARGS env to pass build-arg for building deb and rpm

Signed-off-by: Lei Jitang <leijitang@huawei.com>

hack/make/build-deb

@@ -44,7 +44,7 @@ set -e
 
 		image="dockercore/builder-deb:$version"
 		if ! docker inspect "$image" &> /dev/null; then
-			( set -x && docker build -t "$image" "$dir" )
+			( set -x && docker build ${DOCKER_BUILD_ARGS} -t "$image" "$dir" )
 		fi
 
 		mkdir -p "$DEST/$version"

hack/make/build-rpm

@@ -67,7 +67,7 @@ set -e
 
 		image="dockercore/builder-rpm:$version"
 		if ! docker inspect "$image" &> /dev/null; then
-			( set -x && docker build -t "$image" "$dir" )
+			( set -x && docker build ${DOCKER_BUILD_ARGS} -t "$image" "$dir" )
 		fi
 
 		mkdir -p "$DEST/$version"