wmt(4): revert r358872 (by hselasky)

Limiting frame size to maximum packet size breaks devices which have input
report size larger than wMaxPacketSize. Maximal input report size should be
used instead.
Revert the commit as it have not been MFC-ed yet.

Discussed with:	hselasky

sys/dev/usb/input/wmt.c

@@ -251,7 +251,7 @@ static const struct usb_config wmt_config[WMT_N_TRANSFER] = {
 		.endpoint = UE_ADDR_ANY,
 		.direction = UE_DIR_IN,
 		.flags = { .pipe_bof = 1, .short_xfer_ok = 1 },
-		.bufsize = 0,	/* use wMaxPacketSize */
+		.bufsize = WMT_BSIZE,
 		.callback = &wmt_intr_callback,
 	},
 };