This replaces the use of uci_validate_section() with
uci_load_validate(), which removes the need to declare local variables
for every config option.

This also adds a validate section to service_triggers(), and fixes some
variable name typos in qosdef_init_static().

Signed-off-by: Jeffery To <jeffery.to@gmail.com>

Since the functions in procd.sh invoke "initscript" variable which is
not defined when imported procd.sh from hotplug scripts. And this
results in error when calling basename utility.

Sun Jan 20 12:34:50 2019 daemon.debug dnsmasq-script[15340]: BusyBox v1.28.4 () multi-call binary.
Sun Jan 20 12:34:50 2019 daemon.debug dnsmasq-script[15340]:
Sun Jan 20 12:34:50 2019 daemon.debug dnsmasq-script[15340]: Usage: basename FILE [SUFFIX]
Sun Jan 20 12:34:50 2019 daemon.debug dnsmasq-script[15340]:
Sun Jan 20 12:34:50 2019 daemon.debug dnsmasq-script[15340]: Strip directory path and .SUFFIX from FILE
Sun Jan 20 12:34:50 2019 user.notice nft-qos-monitor: ACTION=update, MACADDR=xxxxxx, IPADDR=192.168.11.109, HOSTNAME=Honor_Play
Sun Jan 20 12:34:50 2019 daemon.info dnsmasq[15340]: 250 192.168.11.109/60566 reply www.google.com is 216.58.215.68
Sun Jan 20 12:34:50 2019 daemon.info dnsmasq[15340]: 251 192.168.11.109/43456 reply mtalk.google.com is <CNAME>
Sun Jan 20 12:34:50 2019 daemon.info dnsmasq[15340]: 251 192.168.11.109/43456 reply mobile-gtalk.l.google.com is 173.194.222.188
Sun Jan 20 12:34:50 2019 daemon.debug dnsmasq-script[15340]: BusyBox v1.28.4 () multi-call binary.
Sun Jan 20 12:34:50 2019 daemon.debug dnsmasq-script[15340]:
Sun Jan 20 12:34:50 2019 daemon.debug dnsmasq-script[15340]: Usage: basename FILE [SUFFIX]
Sun Jan 20 12:34:50 2019 daemon.debug dnsmasq-script[15340]:
Sun Jan 20 12:34:50 2019 daemon.debug dnsmasq-script[15340]: Strip directory path and .SUFFIX from FILE
Sun Jan 20 12:34:51 2019 daemon.debug dnsmasq-script[15340]: BusyBox v1.28.4 () multi-call binary.
Sun Jan 20 12:34:51 2019 daemon.debug dnsmasq-script[15340]:
Sun Jan 20 12:34:51 2019 daemon.debug dnsmasq-script[15340]: Usage: basename FILE [SUFFIX]
Sun Jan 20 12:34:51 2019 daemon.debug dnsmasq-script[15340]:
Sun Jan 20 12:34:51 2019 daemon.debug dnsmasq-script[15340]: Strip directory path and .SUFFIX from FILE
Sun Jan 20 12:34:51 2019 user.notice nft-qos-dynamic: ACTION=update, MACADDR=xxxxxx, IPADDR=192.168.11.109, HOSTNAME=Honor_Play

Signed-off-by: Rosy Song <rosysong@rosinson.com>

This is the nftables implementation for qos on OpenWrt,
Currently, it has below features:

* Static QoS : setting limit rate for devices or global network.

* Dynamic/Auto QoS : setting limit rate according to the network
  bandwidth and adjust itself automatically (hotplug event).

* Traffic Priority : this feature is like traffic shaping under tc,
  it uses ingress hook to handle to packets here.

Signed-off-by: Rosy Song <rosysong@rosinson.com>