usb: gadget: udc-xilinx: Remove trailing space after \n newline

There is a extraneous space after a newline in a dev_dbg message.
Remove it.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20240901162357.144222-1-colin.i.king@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>