tools: imximage: Let .name field be more generic

Since this structure is not i.MX5x specific, remove the '5x' to make it more
generic.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
diff --git a/tools/imximage.c b/tools/imximage.c
index a93d7eb..fa308c9 100644
--- a/tools/imximage.c
+++ b/tools/imximage.c
@@ -551,7 +551,7 @@
  * imximage parameters
  */
 static struct image_type_params imximage_params = {
-	.name		= "Freescale i.MX 5x Boot Image support",
+	.name		= "Freescale i.MX Boot Image support",
 	.header_size	= sizeof(struct imx_header),
 	.hdr		= (void *)&imximage_header,
 	.check_image_type = imximage_check_image_types,