Add support for vacuum Midea M6

[rokam]

Device type and model (or SN)

0000B85217500001H2B084100801AXZL

The description of new feature

Hello,

Appliance code | Type | SN
153931628038419 | B8 | 0000B85217500001H2B084100801AXZL | NO

Can you please support this type of vacuum ?

thank you

[https://api.github.com/repos/wuwentao/midea_ac_lan/issues/205]