client: make callid in MDCX mandatory

An MDCX without call-id does not make much sense. The call-id is
an integral element of the MDCX message to ensure that the correct
call is modified.

- update the presence check bitmasks to mark the call-id field
  mandatory for MDCX requests

Change-Id: Id2bcc3a68139e0d935790bcea2ef91eaf6291aa3
1 file changed