driconf: Add Catalan translations

See the instructions in Makefile.am under "Adding new translations".
Reviewed-by: Eric Anholt <eric@anholt.net>

src/mesa/drivers/dri/common/xmlpool/Makefile.am

@@ -41,7 +41,7 @@
 # - info gettext
 
 # The set of supported languages. Add languages as needed.
-POS=de.po es.po nl.po fr.po sv.po
+POS=ca.po de.po es.po nl.po fr.po sv.po
 
 #
 # Don't change anything below, unless you know what you're doing.