Fix incall music flag entry in type converter

Fix an issue that was introduced in the latest commit due to the
temporary definition of AUDIO_OUTPUT_FLAG_INCALL_MUSIC as a MACRO.
This change explicitly adds the flag in TypeConverter.

Bug: 69973354.
Test: Tested manually.
Change-Id: Id56f746a481a246b109ac1b8458d494575263f99
1 file changed