tools/sort-files: do not sort yml files

Signed-off-by: Philip Li <philip.li@intel.com>

Author: rli9

tools/sort-files

@@ -10,7 +10,7 @@ echo "LKP_SRC=$LKP_SRC"
 	echo $LKP_SRC/distro/keep-deb
 
 	find $LKP_SRC/programs -type f -name depends\*
-	find $LKP_SRC/etc -type f ! -name makepkg.conf
+	find $LKP_SRC/etc -type f ! -name makepkg.conf ! -name \*.yml
 ) | while read f; do
 	LC_ALL=C sort -f $f | uniq > $f.tmp && mv $f.tmp $f
 done