util/autoport: Remove bd82x6x/pch.h from generated mainboard.c

The southbridge/intel/bd82x6x/pch.h header was previously used to
configure a few registers in SPIBAR, but these have since been moved to
PCH code and the devicetree, making it unnecessary in mainboard.c

Change-Id: I904c95394b4fea73b4990342e647595b5f10335f
Signed-off-by: Nicholas Chin <nic.c3.14@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82601
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/util/autoport/bd82x6x.go b/util/autoport/bd82x6x.go
index 00b136b..8ad0c17 100644
--- a/util/autoport/bd82x6x.go
+++ b/util/autoport/bd82x6x.go
@@ -194,9 +194,6 @@
 			Value: "\\_SB.PCI0.GFX0.DECB",
 		})
 
-	/* SPI init */
-	MainboardIncludes = append(MainboardIncludes, "southbridge/intel/bd82x6x/pch.h")
-
 	FADT := ctx.InfoSource.GetACPI()["FACP"]
 
 	pcieHotplugMap := "{ "