add zhimi.airpurifier.amp1 support

[dsh0416]

No description provided.

[rytilahti]

LGTM, can be merged after the checks pass. Thanks @dsh0416!

[codecov-commenter]

Codecov Report

Merging #1464 (174e059) into master (32d41ce) will decrease coverage by 0.31%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1464      +/-   ##
==========================================
- Coverage   82.80%   82.48%   -0.32%     
==========================================
  Files         140      140              
  Lines       13813    13898      +85     
  Branches     1553     3304    +1751     
==========================================
+ Hits        11438    11464      +26     
- Misses       2156     2214      +58     
- Partials      219      220       +1     

Impacted Files	Coverage Δ
...integrations/airpurifier/zhimi/airpurifier_miot.py	80.82% <100.00%> (+0.08%)	⬆️
miio/gateway/alarm.py	47.72% <0.00%> (-7.83%)	⬇️
miio/gateway/devices/subdevice.py	33.14% <0.00%> (-3.74%)	⬇️
miio/gateway/gateway.py	44.44% <0.00%> (-1.76%)	⬇️
miio/push_server/server.py	24.62% <0.00%> (+1.14%)	⬆️
miio/gateway/gatewaydevice.py	69.23% <0.00%> (+2.56%)	⬆️

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