Audio: Add QCELP, EVRC,AAC_MP4  mime types for MMS

- MMS is failing for  QCELP, EVRC and AAC_MP4 audio clips.

- The above formats are not supported MMS audio types.

- Add above formats in MMS content types.

Change-Id: I85d0850a31ae1658fa905ccd200fb2cff04139bf
CRs-Fixed: 566784
BACKUP: Fix Phone tip "backup has stopped" when backup mms to SD card

The send out mms's pdu type is Retrieve Conf, but the PduComposer didn't
support this type, so always return null, this will cause backup failed.

Add Retrieve Conf support for PduComposer.

CRs-Fixed: 572277

Change-Id: I57444cd8a9ddc2db4586088a05600f21331ef465
Check the unsupported type's uri to avoid NullPointerException

Forwarding an unsupported type of mms may have an
unexpected Uri, such as missing authority part.
Make sure the uri has an authority before using it.

Change-Id: I57c2569b9f81750df1efb6b5ec8586f00af3efe3
CRs-Fixed: 583527