rtp_proxy.c: Correctly set msg_type to GSM_TCH_FRAME_AMR on AMR

When forwarding AMR from RTP towards the MNCC interface, we need to set
the apropriate msg_type.  Before this patch it was unitialized,
resulting in improper/unknown msg_types of messages on the MNCC
interface.
1 file changed
tree: e4753e3ac3aa068ee66ca15d8938bbd635a36188
  1. debian/
  2. hlrsync/
  3. linux-kernel/
  4. openbsc/
  5. wireshark/
  6. README