Add newlines to Makefile output to improve readability

Currently, the Makefile's output prints without newlines between
running helm * commands against our charts. This can make it
difficult to parse output at a glance. This adds newlines before
and after the helm commands against charts, making output more
readable

Change-Id: I8977f3ab69322bab8924ff09fcb3c5fa84b9b13b

Makefile

@@ -60,7 +60,9 @@ clean:
 	echo "Removed all .b64, _partials.tpl, and _globals.tpl files"
 
 build-%:
+	@echo
 	if [ -f $*/Makefile ]; then make -C $*; fi
 	if [ -f $*/requirements.yaml ]; then helm dep up $*; fi
 	helm lint $*
 	helm package $*
+	@echo