soc/amd/common/acp: Move Audio Co-processor driver to common

Audio Co-processor driver is similar for both Picasso and Cezanne SoCs.
Hence move it to the common location.

BUG=None.
TEST=Builds Dalboz, Trembyle, Vilboz, Mandolin and Bilby mainboards.

Change-Id: I91470ff68d1c183df9a2927d71b03371b535186a
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52643
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
diff --git a/src/mainboard/amd/bilby/devicetree.cb b/src/mainboard/amd/bilby/devicetree.cb
index c07415e..5429234 100644
--- a/src/mainboard/amd/bilby/devicetree.cb
+++ b/src/mainboard/amd/bilby/devicetree.cb
@@ -1,7 +1,8 @@
 # SPDX-License-Identifier: GPL-2.0-only
 
 chip soc/amd/picasso
-	register "acp_pin_cfg" = "I2S_PINS_MAX_HDA"
+	# ACP Configuration
+	register "common_config.acp_config.acp_pin_cfg" = "I2S_PINS_MAX_HDA"
 
 	# Set FADT Configuration
 	register "common_config.fadt_boot_arch" = "ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042"