configs: add support for 32/48KHz voip

Add 32/48KHz sampling rates to 8998 config file
and 32KHz sampling rate to 8996 config file to
allow voip applications with 32/48KHz to route to
the voip path

CRs-Fixed: 1065380
Change-Id: I0801f912977d9aed783c33a308288eae422a851b
2 files changed