ARM: dts: Turn ULCB into Multi-DTB config

Bundle DTBs for R8A7795, R8A7796 ULCB variants into single U-Boot
build and let U-Boot choose between them based on the CPU model.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/board/renesas/ulcb/ulcb.c b/board/renesas/ulcb/ulcb.c
index 628c536..81d6f8f 100644
--- a/board/renesas/ulcb/ulcb.c
+++ b/board/renesas/ulcb/ulcb.c
@@ -82,3 +82,21 @@
 
 	return 0;
 }
+
+#ifdef CONFIG_MULTI_DTB_FIT
+int board_fit_config_name_match(const char *name)
+{
+	/* PRR driver is not available yet */
+	u32 cpu_type = rmobile_get_cpu_type();
+
+	if ((cpu_type == RMOBILE_CPU_TYPE_R8A7795) &&
+	    !strcmp(name, "r8a7795-h3ulcb-u-boot"))
+		return 0;
+
+	if ((cpu_type == RMOBILE_CPU_TYPE_R8A7796) &&
+	    !strcmp(name, "r8a7796-m3ulcb-u-boot"))
+		return 0;
+
+	return -1;
+}
+#endif