mb/amd/majolica: Add an empty function of mainboard bootblock

Change-Id: I985405b51c81d1e5a3a593bfb759e9850beb2244
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50116
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>

src/mainboard/amd/majolica/Makefile.inc

@@ -1,5 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 
+bootblock-y += bootblock.c
+
 APCB_SOURCES = $(MAINBOARD_BLOBS_DIR)/APCB_CZN_D4_Updatable.bin
 APCB_SOURCES_68 = $(MAINBOARD_BLOBS_DIR)/APCB_CZN_D4_Updatable_68.bin
 APCB_SOURCES_RECOVERY = $(MAINBOARD_BLOBS_DIR)/APCB_CZN_D4_DefaultRecovery.bin

src/mainboard/amd/majolica/bootblock.c

@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <bootblock_common.h>
+
+void bootblock_mainboard_early_init(void)
+{
+}