Staging: rtl8188eu: Fixed "foo * bar" related coding style issues

This patch fixes all "foo * bar", "foo*bar", "foo* bar" checkpatch.pl errors for
rtl8188eu.

Signed-off-by: Tim Jester-Pfadt <t.jp@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>