[Bugfix][T106BUG-48] Resolve setting DTMF to return 8004 error

Only Configure:No
Affected branch:master
Affected module:Call
Is it affected on both ZXIC and MTK: only ZXIC
Self-test: Yes
Doc Update:No

Change-Id: Ie6e7d23589c7b83b7f06d18855e90e570e6d0976
1 file changed