config: Add INT0_MI2S_RX as echo-reference port for SDM630 skush

- Add INT0_MI2S_RX as audio internal echo reference port for
recording in handset mode. This port is used for far end AFE
port during echo cancellation.

CRs-Fixed: 2063851
Change-Id: I0803dd4608bae2624e364f8cd6153a541f8748c9
1 file changed