ASoC: msm: qdsp6v2: Add support for Slimbus tx4 port

Change adds support for enabling the slimbus tx4 port.

Change-Id: I88cafcf53b85a94a0b316c4af012773d1cbfd662
Signed-off-by: Gopikrishnaiah Anandan <agopik@codeaurora.org>
diff --git a/sound/soc/msm/qdsp6v2/q6audio-v2.c b/sound/soc/msm/qdsp6v2/q6audio-v2.c
index 99cb6a6..4ed0fb7 100644
--- a/sound/soc/msm/qdsp6v2/q6audio-v2.c
+++ b/sound/soc/msm/qdsp6v2/q6audio-v2.c
@@ -43,6 +43,7 @@
 	case SLIMBUS_1_TX: return IDX_SLIMBUS_1_TX;
 	case SLIMBUS_2_RX: return IDX_SLIMBUS_2_RX;
 	case SLIMBUS_2_TX: return IDX_SLIMBUS_2_TX;
+	case SLIMBUS_4_TX: return IDX_SLIMBUS_4_TX;
 	case INT_BT_SCO_RX: return IDX_INT_BT_SCO_RX;
 	case INT_BT_SCO_TX: return IDX_INT_BT_SCO_TX;
 	case INT_BT_A2DP_RX: return IDX_INT_BT_A2DP_RX;
@@ -89,6 +90,7 @@
 	case SLIMBUS_1_TX: return AFE_PORT_ID_SLIMBUS_MULTI_CHAN_1_TX;
 	case SLIMBUS_2_RX: return AFE_PORT_ID_SLIMBUS_MULTI_CHAN_2_RX;
 	case SLIMBUS_2_TX: return AFE_PORT_ID_SLIMBUS_MULTI_CHAN_2_TX;
+	case SLIMBUS_4_TX: return AFE_PORT_ID_SLIMBUS_MULTI_CHAN_4_TX;
 	case INT_BT_SCO_RX: return AFE_PORT_ID_INTERNAL_BT_SCO_RX;
 	case INT_BT_SCO_TX: return AFE_PORT_ID_INTERNAL_BT_SCO_TX;
 	case INT_BT_A2DP_RX: return AFE_PORT_ID_INTERNAL_BT_A2DP_RX;
@@ -182,6 +184,7 @@
 	case SLIMBUS_1_TX:
 	case SLIMBUS_2_RX:
 	case SLIMBUS_2_TX:
+	case SLIMBUS_4_TX:
 	case INT_BT_SCO_RX:
 	case INT_BT_SCO_TX:
 	case INT_BT_A2DP_RX: