mmsd: Do a different approach in handling modem changes
So that we can reuse ChattyMmDevice used in chatty-mm-account and avoid exposing some APIs.
/cc @kop316 (Note: I haven't tested it actually with sending MMS)
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So that we can reuse ChattyMmDevice used in chatty-mm-account and avoid exposing some APIs.
/cc @kop316 (Note: I haven't tested it actually with sending MMS)