mb/google/hatch: Kohaku: Enable DMIC1 in device tree

The default is DMIC0 on, but Kohaku is also using DMIC1

BUG=b:133282247
BRANCH=None
TEST=arecord -D hw:0,1 -r 48000 -c 4 -f s32 4dmic.wav
make sure 4 channels recording work

Signed-off-by: Mac Chiang <mac.chiang@intel.com>
Change-Id: I2dd573e1634516bcf9876bedb92b7d9148bb0e6a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34692
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/hatch/variants/baseboard/devicetree.cb

@@ -168,11 +168,12 @@ chip soc/intel/cannonlake
 	register "PcieClkSrcUsage[3]" = "13"
 	register "PcieClkSrcClkReq[3]" = "3"
 
-	#Enable I2S Audio, SSP0, SSP1 and DMIC0
+	#Enable I2S Audio, SSP0, SSP1 and DMIC0, default DMIC1 N/A (by variants override)
 	register "PchHdaDspEnable" = "1"
 	register "PchHdaAudioLinkSsp0" = "1"
 	register "PchHdaAudioLinkSsp1" = "1"
 	register "PchHdaAudioLinkDmic0" = "1"
+	register "PchHdaAudioLinkDmic1" = "0"
 
 	# GPIO PM programming
 	register "gpio_override_pm" = "1"

src/mainboard/google/hatch/variants/kohaku/overridetree.cb

@@ -20,6 +20,9 @@ chip soc/intel/cannonlake
 	# No PCIe WiFi
 	register "PcieRpEnable[13]" = "0"
 
+	# Enable DMIC1
+	register "PchHdaAudioLinkDmic1" = "1"
+
 	# Intel Common SoC Config
 	#+-------------------+---------------------------+
 	#| Field	     |	Value			 |