staging: rtl8187se: fix conditional statement indent

This patch fixes the following checkpatch warning:
WARNING: suspect code indent for conditional statements (24, 26)

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>