Add support for `montana`

[agnercarvalho]

Is your device already requested?

• I have searched the existing issues

Brand

Motorola

Name

Moto G5S

Device code

montana

Model

XT1792

Device images

No response

Do you own the device and would be willing to test the installer?

• I own the device and am willing to test the installer on it.

Additional context

No response

[SirRGB]

Should work with cedric copy pasta, will look into it

[tsterbak]

Support is expected with the next release of v0.5.5 (#695)