video: console: add missing MODULE_DESCRIPTION() macros

With ARCH=i386, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/video/console/mdacon.o

Add the missing invocation of the MODULE_DESCRIPTION() macro to all
files which have a MODULE_LICENSE().

This includes three other files which, although they did not produce a
warning with the i386 allmodconfig configuration, may cause this
warning with other configurations.

Signed-off-by: Jeff Johnson <[e-mail]>
Signed-off-by: Helge Deller <[e-mail]>

drivers/video/console/mdacon.c

···
 module_init(mda_console_init);
 module_exit(mda_console_exit);
 
+MODULE_DESCRIPTION("MDA based console driver");
 MODULE_LICENSE("GPL");
 

drivers/video/console/newport_con.c

···
 };
 module_driver(newport_driver, gio_register_driver, gio_unregister_driver);
 
+MODULE_DESCRIPTION("SGI Newport console driver");
 MODULE_LICENSE("GPL");

drivers/video/console/sticon.c

···
 }
 
 module_init(sticonsole_init);
+MODULE_DESCRIPTION("HP STI console driver");
 MODULE_LICENSE("GPL");

drivers/video/console/vgacon.c

···
 	vga_si = si;
 }
 
+MODULE_DESCRIPTION("VGA based console driver");
 MODULE_LICENSE("GPL");