ref-manual: Added support for variable permalinks in the glossary.

Fixes [YOCTO #5772]

Updated the customization layer to include the file that generates
permalinks for the variable definitions.

(From yocto-docs rev: adfb6f06fcba2045e56353bcff0df1df9106544c)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/ref-manual/ref-manual-customization.xsl

@@ -8,6 +8,7 @@
   <xsl:include href="../template/component.title.xsl"/>
   <xsl:include href="../template/division.title.xsl"/>
   <xsl:include href="../template/formal.object.heading.xsl"/>
+  <xsl:include href="../template/gloss-permalinks.xsl"/>
 
   <xsl:param name="html.stylesheet" select="'ref-style.css'" />
   <xsl:param name="chapter.autolabel" select="1" />