libroxml: bump version to 2.2.0

Signed-off-by: Tristan Lelong <tristan.lelong@blunderer.org>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/libroxml/libroxml.mk

@@ -2,7 +2,7 @@
 # libroxml
 #
 
-LIBROXML_VERSION = 2.1.2
+LIBROXML_VERSION = 2.2.0
 LIBROXML_SITE = http://libroxml.googlecode.com/files
 LIBROXML_INSTALL_STAGING = YES