参数来源：https://github.com/openwrt/packages/commit/c54a826086092b9af17258355af465879dfc9acd#diff-517378957dd5ecc51358b1ae79836edb
经测试，对于ssr也可以优化
测试平台：ar71xx ramips

This reverts commit 2c0a9d40.

迅雷快鸟openwrt的原作者项目：https://github.com/sensec/luci-app-xlnetacc/blob/master/files/root/etc/init.d/xlnetacc
原项目并没有采用kill -9的强杀方式
lean项目中迁移后的版本使用kill -9会导致不能正确注销，从而产生如下问题。
1、luci 快鸟web界面中切换从“启用”切换为“不启用”后，短期内无法停止提速效果（因为只是强杀xlnetacc.sh）
2、强杀将导致未注销就丢失了最近一次的sessionid（该变量为xlnetacc.sh的临时变量，强杀后就丢失了）。根据迅雷快鸟的官方规则，在前一次未注销的情况下，假如ip变化，那么新ip在24小时内将无法再次加速。
所以导致了在
a.重启路由
b.重启光猫
c.重新插拔光猫网线
d.web界面中手工停用快鸟后又进行了重新拨号

这些操作都将导致24小时内无法再次提速

原始项目中采用不加-9的kill能够安全发送信号导致注销操作

* hostapd: reduce to a single instance per service

* mac80211: sync upstream source code

* iw: bump to 5.4

Fixes NULL dereference in SSL_check_chain() for TLS 1.3, marked with
high severity, assigned CVE-2020-1967.

Ref: https://www.openssl.org/news/secadv/20200421.txt

Cherry-pick from openwrt/openwrt@3773ae1.
Also add mirror for mainland China user in this commit.
Signed-off-by: NPetr Štetiar <ynezz@true.cz>
Signed-off-by: NCN_SZTL <cnsztl@project-openwrt.eu.org>
Co-authored-by: NPetr Štetiar <ynezz@true.cz>

This can speed up building toolchain

Security fixes for:
* CVE-2020-10932
* a potentially remotely exploitable buffer overread in a DTLS client
* bug in DTLS handling of new associations with the same parameters

Full release announement:
https://tls.mbed.org/tech-updates/releases/mbedtls-2.16.6-and-2.7.15-released

Cherry-pick from: openwrt/openwrt@02fcbe2.
Signed-off-by: NMagnus Kroken <mkroken@gmail.com>
Signed-off-by: NCN_SZTL <cnsztl@project-openwrt.eu.org>
Co-authored-by: NMagnus Kroken <mkroken@gmail.com>

Bump to the newest version of wireguard

* kernel: bump 4.14 to 4.14.176

Refreshed all patches.

Remove upstreamed:
- 0001-net-thunderx-workaround-BGX-TX-Underflow-issue.patch
- 600-ipv6-addrconf-call-ipv6_mc_up-for-non-Ethernet-inter.patch
- 184-USB-serial-option-add-Wistron-Neweb-D19Q1.patch

Fixes:
- CVE-2020-8648 (potentially)
- CVE-2020-8647
- CVE-2020-8649

Compile-tested on: cns3xxx, octeontx
Runtime-tested on: cns3xxx
Signed-off-by: NKoen Vandeputte <koen.vandeputte@ncentric.com>

* kernel: bump 4.19 to 4.19.115

Remove upstreamed:
- 600-ipv6-addrconf-call-ipv6_mc_up-for-non-Ethernet-inter.patch
- 184-USB-serial-option-add-Wistron-Neweb-D19Q1.patch

Fixes:
- CVE-2020-8647
- CVE-2020-8648 (potentially)
- CVE-2020-8649

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx
Signed-off-by: NKoen Vandeputte <koen.vandeputte@ncentric.com>

* kernel: bump 4.9 to 4.9.219

Refreshed all patches.

Altered patches:
- 0026-NET-multi-phy-support.patch

Fixes:
- CVE-2020-8647
- CVE-2020-8648 (Potentially)
- CVE-2020-8649

Compile-tested on: ar71xx
Runtime-tested on: ar71xx
Signed-off-by: NKoen Vandeputte <koen.vandeputte@ncentric.com>

Correct the make download command: V should be in capital to work.