tool: use ALIGN() to align the size

Use the ALIGN() for size align so that the code is more readable.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/tools/fit_image.c b/tools/fit_image.c
index 4301b5d..55efe12 100644
--- a/tools/fit_image.c
+++ b/tools/fit_image.c
@@ -547,7 +547,7 @@
 	if (fd < 0)
 		return -EIO;
 	fit_size = fdt_totalsize(old_fdt);
-	data_base = (fit_size + 3) & ~3;
+	data_base = ALIGN(fit_size, 4);
 
 	/* Allocate space to hold the new FIT */
 	size = sbuf.st_size + 16384;
diff --git a/tools/socfpgaimage.c b/tools/socfpgaimage.c
index 8fa0983..6dfd64e 100644
--- a/tools/socfpgaimage.c
+++ b/tools/socfpgaimage.c
@@ -203,7 +203,7 @@
 	uint32_t calc_crc;
 
 	/* Align the length up */
-	len = (len + 3) & ~3;
+	len = ALIGN(len, 4);
 
 	/* Build header, adding 4 bytes to length to hold the CRC32. */
 	sfp_build_header(buf + HEADER_OFFSET, ver, flags, len + 4);