soc/amd/cezanne: Get I2C specific code for cezanne

Add macros, settings and callbacks to support I2C for cezanne.

Change-Id: Ic480681d4b7c6fb8591e729090e4faeb5fccf800
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51025
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

src/soc/amd/cezanne/chip.h

@@ -4,9 +4,13 @@
 #define CEZANNE_CHIP_H
 
 #include <amdblocks/chip.h>
+#include <soc/i2c.h>
+#include <drivers/i2c/designware/dw_i2c.h>
 
 struct soc_amd_cezanne_config {
 	struct soc_amd_common_config common_config;
+	u8 i2c_scl_reset;
+	struct dw_i2c_bus_config i2c[I2C_CTRLR_COUNT];
 };
 
 #endif /* CEZANNE_CHIP_H */