uwb: remove trailing whitespace for coding style

There were tabs there before that aren't in this patch. After the
semicolon there was a space that I removed. This is to suit the coding
style.
Signed-off-by: NHugh Sipière <hgsipiere@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>