staging: rtl8188eu: Line over 80 characters

Break various lines into multiple lines to respect 80 character width
limit.
Reported by checkpatch.pl

Signed-off-by: Soumyajit Deb <debsoumyajit100@gmail.com>
Link: https://lore.kernel.org/r/20200406111706.25957-4-debsoumyajit100@gmail.com


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