On Android bindings, do not build a DtmfSender instance in a
RtpSender if its video kind is Video.
This will prevent showing an error when trying to access
that DtmfSender instance that has no native reference
Bug: webrtc:14680
Change-Id: Iba67a12cae8604c032915156b581af269f6ed265
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/283742
Commit-Queue: Sergey Silkin <ssilkin@webrtc.org>
Reviewed-by: Sergey Silkin <ssilkin@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#38724}