Revert: soc/intel/skylake: Set FSP-S UPD PchHdaIDispCodecDisconnect to 1

This reverts commit 32997fb0bcb9f4183789331a91fd83138776b96f.

This change is breaking I2S audio on Kabylake platforms so
revert the change to fix audio.

BUG=chrome-os-partner:61548,chrome-os-partner:61009
TEST=manual testing on Eve P1 system

Change-Id: I3212c8be83078ed57e38501386605e67b87d5bd0
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/18360
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
diff --git a/src/soc/intel/skylake/chip_fsp20.c b/src/soc/intel/skylake/chip_fsp20.c
index ebd3134..2aef65a 100644
--- a/src/soc/intel/skylake/chip_fsp20.c
+++ b/src/soc/intel/skylake/chip_fsp20.c
@@ -190,7 +190,6 @@
 	params->PchIshEnable = config->IshEnable;
 	params->PchHdaEnable = config->EnableAzalia;
 	params->PchHdaIoBufferOwnership = config->IoBufferOwnership;
-	params->PchHdaIDispCodecDisconnect = 1;
 	params->PchHdaDspEnable = config->DspEnable;
 	params->XdciEnable = config->XdciEnable;
 	params->Device4Enable = config->Device4Enable;