power: vexpress: add suppress_bind_attrs to true

BugLink: https://bugs.launchpad.net/bugs/1884564

commit 73174acc upstream.

Make sure that the POWER_RESET_VEXPRESS driver won't have bind/unbind
attributes available via the sysfs, so lets be explicit here and use
".suppress_bind_attrs = true" to prevent userspace from doing something
silly.

Link: https://lore.kernel.org/r/20200527112608.3886105-2-anders.roxell@linaro.org
Cc: stable@vger.kernel.org
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

drivers/power/reset/vexpress-poweroff.c

@@ -150,6 +150,7 @@ static struct platform_driver vexpress_reset_driver = {
 	.driver = {
 		.name = "vexpress-reset",
 		.of_match_table = vexpress_reset_of_match,
+		.suppress_bind_attrs = true,
 	},
 };