Fixed gamecontroller database sorting script not sorting the whole database.

The script was originally written for an SDL_gamecontrollerdb.h which had groups
of mappings separated by single lines starting with a "#". This was changed some
time ago to #endif/#if pairs. Because the script assumed only a single #endif in
the whole file it no longer worked correctly and only processed the first group.

src/joystick/sort_controllers.py

@@ -43,12 +43,14 @@ for line in input:
     if (parsing_controllers):
         if (line.startswith("{")):
             output.write(line)
-        elif (line.startswith("#endif")):
+        elif (line.startswith("    NULL")):
             parsing_controllers = False
             write_controllers()
             output.write(line)
-        elif (line.startswith("#")):
+        elif (line.startswith("#if")):
             print("Parsing " + line.strip())
+            output.write(line)
+        elif (line.startswith("#endif")):
             write_controllers()
             output.write(line)
         else: