soc/amd/cezanne: add config.c and minimal chip.h

Change-Id: I89f08c201bd7d9a11b186ef960abe9714a76fb97
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48317
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>

src/soc/amd/cezanne/chip.h

@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef CEZANNE_CHIP_H
+#define CEZANNE_CHIP_H
+
+#include <amdblocks/chip.h>
+
+struct soc_amd_cezanne_config {
+	struct soc_amd_common_config common_config;
+};
+
+#endif /* CEZANNE_CHIP_H */