HID: letsketch: add missing MODULE_DESCRIPTION() macro

make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-letsketch.o

Add the missing invocation of the MODULE_DESCRIPTION() macro.

Signed-off-by: Jeff Johnson <[e-mail]>
Reviewed-by: Hans de Goede <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Benjamin Tissoires <[e-mail]>

drivers/hid/hid-letsketch.c

···
 module_hid_driver(letsketch_driver);
 
 MODULE_AUTHOR("Hans de Goede <[e-mail]>");
+MODULE_DESCRIPTION("Driver for the LetSketch / VSON WP9620N drawing tablet");
 MODULE_LICENSE("GPL");