mb/google/brya: Add variant specific soc chip config update

This patch adds support for variant specific soc chip config update
function.

Change-Id: Ic3a3ae0b409433e6dfa102c5e7a6322d4f78f730
Signed-off-by: Sugnan Prabhu S <sugnan.prabhu.s@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56411
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>

src/mainboard/google/brya/mainboard.c

@@ -4,8 +4,19 @@
 #include <baseboard/variants.h>
 #include <device/device.h>
 #include <ec/ec.h>
+#include <soc/ramstage.h>
 #include <vendorcode/google/chromeos/chromeos.h>
 
+void mainboard_update_soc_chip_config(struct soc_intel_alderlake_config *config)
+{
+	variant_update_soc_chip_config(config);
+}
+
+__weak void variant_update_soc_chip_config(struct soc_intel_alderlake_config *config)
+{
+	/* default implementation does nothing */
+}
+
 static void mainboard_init(void *chip_info)
 {
 	const struct pad_config *base_pads;

src/mainboard/google/brya/variants/baseboard/include/baseboard/variants.h

@@ -3,6 +3,7 @@
 #ifndef __BASEBOARD_VARIANTS_H__
 #define __BASEBOARD_VARIANTS_H__
 
+#include <chip.h>
 #include <soc/gpio.h>
 #include <soc/meminit.h>
 #include <stdint.h>
@@ -19,5 +20,6 @@ const struct cros_gpio *variant_cros_gpios(size_t *num);
 const struct mb_cfg *variant_memory_params(void);
 int variant_memory_sku(void);
 bool variant_is_half_populated(void);
+void variant_update_soc_chip_config(struct soc_intel_alderlake_config *config);
 
 #endif /*__BASEBOARD_VARIANTS_H__ */