soc/amd/acp: Hook up ops in devicetree

This removes the need for a PCI driver.

Change-Id: Id25016703d1716930d9b6c6d1dab5481b10aca17
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68145
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
diff --git a/src/soc/amd/mendocino/chipset_rembrandt.cb b/src/soc/amd/mendocino/chipset_rembrandt.cb
index 390d5e5..260452d 100644
--- a/src/soc/amd/mendocino/chipset_rembrandt.cb
+++ b/src/soc/amd/mendocino/chipset_rembrandt.cb
@@ -60,7 +60,7 @@
 					end
 				end
 			end
-			device pci 0.5 alias acp off end # Audio Processor (ACP)
+			device pci 0.5 alias acp off ops amd_acp_ops end # Audio Processor (ACP)
 			device pci 0.6 alias hda off end # Audio Processor HD Audio Controller (main AZ)
 			device pci 0.7 alias mp2 off end # Sensor Fusion Hub (MP2)
 		end