spi: rk_spi: Fix debug format warning

We need to use %lx not %x to describe a fdt_addr_t

Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>

drivers/spi/rk_spi.c

@@ -135,7 +135,7 @@ static int rockchip_spi_ofdata_to_platdata(struct udevice *bus)
 					50000000);
 	plat->deactivate_delay_us = fdtdec_get_int(blob, node,
 					"spi-deactivate-delay", 0);
-	debug("%s: base=%x, periph_id=%d, max-frequency=%d, deactivate_delay=%d\n",
+	debug("%s: base=%lx, periph_id=%d, max-frequency=%d, deactivate_delay=%d\n",
 	      __func__, plat->base, plat->periph_id, plat->frequency,
 	      plat->deactivate_delay_us);