staging: rtl8712: Statements should start on a tabstop

This path fixes four checkpatch.pl warnings:

Statements should start on a tabstop

Signed-off-by: Dawid Esterhuizen <desterhuizen@gmail.com>
Link: https://lore.kernel.org/r/YVXGsMZDGmdGjErJ@kkobus.whirley.local
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>