staging: gasket: Fix lines ending with a '('

Fix lines ending with a '('. Issue found by checkpatch.

Signed-off-by: Cristiane Naves <cristianenavescardoso09@gmail.com>
Link: https://lore.kernel.org/r/20191026191101.GA8973@cristiane-Inspiron-5420


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