[Platform] Matter lacks board support for Silabs Modules

[mkardous-silabs]

Reproduction steps

1.Try Building a Silabs Modules (BRD4316A / BRD4317A / BRD4319A)

Platform

efr32

Platform Version(s)

N/A

Type

Manually tested with SDK

(Optional) If manually tested please explain why this is only manually tested

To test the fix you just need to build and flash on a Silabs Modules

Anything else?

No response