fdt: armv8: Fix build warnings on armv8

Fix below build warnings on armv8,
drivers/spi/fsl_dspi.c: In function ‘fsl_dspi_ofdata_to_platdata’:
drivers/spi/fsl_dspi.c:667:2:
warning: format ‘%x’ expects argument of type ‘unsigned int’,
	but argument 2 has type ‘fdt_addr_t’ [-Wformat=]
debug("DSPI: regs=0x%x, max-frequency=%d, endianess=%s, num-cs=%d\n",
		    ^
lib/fdtdec.c: In function ‘fdtdec_get_addr_size’:
lib/fdtdec.c:105:4:
warning: format ‘%lx’ expects argument of type ‘long unsigned int’,
but argument 3 has type ‘fdt_size_t’ [-Wformat=]
debug("addr=%08lx, size=%08lx\n",
			    ^

Signed-off-by: Haikun Wang <haikun.wang@freescale.com>
Acked-by: Simon Glass <sjg@chromium.org>

lib/fdtdec.c

@@ -102,8 +102,8 @@ fdt_addr_t fdtdec_get_addr_size(const void *blob, int node,
 			size = (fdt_size_t *)((char *)cell +
 					sizeof(fdt_addr_t));
 			*sizep = fdt_size_to_cpu(*size);
-			debug("addr=%08lx, size=%08x\n",
-			      (ulong)addr, *sizep);
+			debug("addr=%08lx, size=%llx\n",
+			      (ulong)addr, (u64)*sizep);
 		} else {
 			debug("%08lx\n", (ulong)addr);
 		}