audio_hal : remove voice call type from sco stream in check

During voice call, device switch from speaker to bt a2dp
we are seeing crash in audio_hal due to invalid addrress
passed to is_sco_in_device_type which cause voice call failed
in bt a2dp.
All voice call usecase routing request made based on stream
output device, input device does not play any role hence removing
voice call check from sco stream in check.

Change-Id: Icaa71c8e461f26c913c0c637504824b848d87e95