riscv: sbi: Add newline to error message

Signed-off-by: NSean Anderson <seanga2@gmail.com>
Reviewed-by: NAtish Patra <atish.patra@wdc.com>
Reviewed-by: NBin Meng <bin.meng@windriver.com>

common/spl/spl_opensbi.c

@@ -56,7 +56,7 @@ void spl_invoke_opensbi(struct spl_image_info *spl_image)
 	/* Find U-Boot image in /fit-images */
 	ret = spl_opensbi_find_uboot_node(spl_image->fdt_addr, &uboot_node);
 	if (ret) {
-		pr_err("Can't find U-Boot node, %d", ret);
+		pr_err("Can't find U-Boot node, %d\n", ret);
 		hang();
 	}