hlr: Add hlr sub-directory to master Makefile (for 'make compile' checks)

Change-Id: Idbd8241fc7d217885f65f84e11f9f1ea13adb82e
diff --git a/hlr/gen_links.sh b/hlr/gen_links.sh
index f63f07b..7a6ebad 100755
--- a/hlr/gen_links.sh
+++ b/hlr/gen_links.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 BASEDIR=../deps