Add support for Sonoff SNZB-02LD

[avbor]

https://www.zigbee2mqtt.io/devices/SNZB-02LD.html#sonoff-snzb-02ld
Info from integration:

  did: lumi.a4c13801a96dffff
  fw_ver: 32
  hw_ver: 0
  ieee: a4:c1:38:01:a9:6d:ff:ff
  lqi: 172
  nwk: '0x7a92'
  rssi: -57
  seq: 72
  type: zigbee
last_report:
  temperature: 25.400000000000002
last_report_gw:
  fw_ver: 1.0.7_0019
  host: 192.168.10.185
  mac: 54:ef:44:46:7e:78
  model: lumi.gateway.mgl001
  name: CH Mi Hub 2 01
last_report_ts: 11s
last_seen:
  54ef44467e78: 11s
listeners: 5
model: SNZB-02LD
params:
  battery_voltage: 3100
  temperature: 25.400000000000002
ttl: 2h50m
uid: '0xa4c13801a96dffff