autoconf: sdm845: add conf to enable display port

Add audio configurations to enable audio functionality
over DisplayPort on sdm845.

Change-Id: If8b5f6c25bca08a61b951cb97167e9ead7271dd3
Signed-off-by: Asish Bhattacharya <asishb@codeaurora.org>
diff --git a/config/sdm845auto.conf b/config/sdm845auto.conf
index 97f2127..64ca29f 100644
--- a/config/sdm845auto.conf
+++ b/config/sdm845auto.conf
@@ -39,3 +39,4 @@
 CONFIG_SND_SOC_MSM_STUB=y
 CONFIG_WCD_DSP_GLINK=y
 CONFIG_MSM_AVTIMER=y
+CONFIG_SND_SOC_MSM_HDMI_CODEC_RX=y