ascend inclusion
category: feature
bugzilla: NA
CVE: NA

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

Fix ICMP information such as netmask and timestamp is
allowed from arbitrary hosts
Default is disable.
enable:
	sysctl -w net.ipv4.icmp_timestamp_enable=1
disable
	sysctl -w net.ipv4.icmp_timestamp_enable=0
test:
	hping3 --icmp --icmp-ts -V $IPADDR
Signed-off-by: NWeilong Chen <chenweilong@huawei.com>
Signed-off-by: NLI Heng <liheng40@huawei.com>
Signed-off-by: NLijun Fang <fanglijun3@huawei.com>
[fix-v2: define sysctl_icmp_timestamp_enable ifndef
CONFIG_ARCH_ASCEND
 fix-v3: ifndef CONFIG_ARCH_ASCEND, sysctl_icmp_timestamp_enable
should set 1]
Reviewed-by: NMao Wenan <maowenan@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>