Merge pull request #1452 from stenzek/patch-1

(core info) Add m3u extension to DuckStation

Author: hizzlekizzle

dist/info/duckstation_libretro.info

@@ -1,6 +1,6 @@
 display_name = "Sony - PlayStation (DuckStation)"
 authors = "stenzek"
-supported_extensions = "cue|bin|img|chd"
+supported_extensions = "cue|bin|img|chd|m3u"
 corename = "DuckStation"
 manufacturer = "Sony"
 categories = "Emulator"