staging: rtl8187se: Fixed open brace in r8180.h

The open brace following struct have to go on the same line as a codingStyle of
 the kernel recommends

This patch fixed errors with a open brace found by checkpatch.pl script in
r8180.h

Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>