mb/amd/majolica: add skeleton of Cezanne reference board

This is an adapted copy of mainboard/example/min86 that is currently
only used for Jenkins to test the SoC code in soc/amd/cezanne and isn't
expected to reach boot block at the moment. It will be extended in
future follow-up commits.

Change-Id: I6806955952fbfa3227294cfc44fdf9156140e933
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48238
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>

src/mainboard/amd/majolica/Kconfig

@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+if BOARD_AMD_MAJOLICA
+
+config BOARD_SPECIFIC_OPTIONS
+	def_bool y
+	select SOC_AMD_CEZANNE
+	select MISSING_BOARD_RESET
+
+config MAINBOARD_DIR
+	default "amd/majolica"
+
+config MAINBOARD_PART_NUMBER
+	default "MAJOLICA"
+
+endif # BOARD_AMD_MAJOLICA

src/mainboard/amd/majolica/Kconfig.name

@@ -0,0 +1,2 @@
+config BOARD_AMD_MAJOLICA
+	bool "Majolica"

src/mainboard/amd/majolica/board_info.txt

@@ -0,0 +1 @@
+Category: eval

src/mainboard/amd/majolica/devicetree.cb

@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+chip soc/amd/cezanne
+
+	device domain 0 on
+	end
+
+end