usb: core: hub: use true,false for bool variable

Fix the following coccicheck warning:

drivers/usb/core/hub.c:95:12-28: WARNING: Assignment of 0/1 to bool
variable
Signed-off-by: NJason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20200426094147.23467-1-yanaijie@huawei.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/core/hub.c

@@ -92,7 +92,7 @@ module_param(old_scheme_first, bool, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(old_scheme_first,
 		 "start with the old device initialization scheme");
 
-static bool use_both_schemes = 1;
+static bool use_both_schemes = true;
 module_param(use_both_schemes, bool, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(use_both_schemes,
 		"try the other device initialization scheme if the "