rcar_gen3: Add missing #{address,size}-cells into generated DT

Add missing #address-cells and #size-cells into generated DT, otherwise
the DT is invalid. While the parsers thus far handled this correctly via
various fallbacks, this is not applicable in the long run, so fix this.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: Ic808a3b27b93e5258ec1a19acc3d593e53625c15

plat/renesas/rcar/bl2_plat_setup.c

@@ -415,6 +415,9 @@ static void bl2_populate_compatible_string(void *dt)
 	uint32_t reg;
 	int ret;
 
+	fdt_setprop_u32(dt, 0, "#address-cells", 2);
+	fdt_setprop_u32(dt, 0, "#size-cells", 2);
+
 	/* Populate compatible string */
 	rcar_get_board_type(&board_type, &board_rev);
 	switch (board_type) {