staging: spmi: hisi-spmi-controller: fix spelling mistake "controlller" -> "controller"

There is a spelling mistake in the MODULE_ALIAS, fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/20200820075136.186199-1-colin.king@canonical.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/hikey9xx/hisi-spmi-controller.c

@@ -354,4 +354,4 @@ module_exit(spmi_controller_exit);
 
 MODULE_LICENSE("GPL v2");
 MODULE_VERSION("1.0");
-MODULE_ALIAS("platform:spmi_controlller");
+MODULE_ALIAS("platform:spmi_controller");