net: hns: use true,false for bool variables

mainline inclusion
from mainline-5.8-rc1
commit 6d927977
category: bugfix
bugzilla: NA
CVE: NA

---------------------------

Fix the following coccicheck warning:

drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c:700:2-8: WARNING:
Assignment of 0/1 to bool variable
drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c:702:2-8: WARNING:
Assignment of 0/1 to bool variable

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Reviewed-by: li yongxin <liyongxin1@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Cheng Jian <cj.chengjian@huawei.com>