staging/emxx_udc: fix indenting issue on a couple of statements

A couple of statements are indented too deeply, remove the
extraneous tabs.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20200918214731.48750-1-colin.king@canonical.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>