platform: fu540: Fix missing newline

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

platform/sifive/fu540/platform.c

@@ -80,6 +80,7 @@ static void fu540_modify_dt(void *fdt)
 
 	plic_fdt_fixup(fdt, "riscv,plic0");
 }
+
 static int fu540_final_init(bool cold_boot)
 {
 	void *fdt;