[new uImage] Remove unnecessary arguments passed to ramdisk routines

boot_get_ramdisk() and image_get_ramdisk() do not need all
cmdtp, flag, argc and argv arguments. Simplify routines definition.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
diff --git a/lib_i386/bootm.c b/lib_i386/bootm.c
index 76bcf6c..b4a52fa 100644
--- a/lib_i386/bootm.c
+++ b/lib_i386/bootm.c
@@ -39,9 +39,12 @@
 	ulong		initrd_start, initrd_end;
 	ulong		ep;
 	image_header_t	*hdr;
+	int		ret;
 
-	boot_get_ramdisk (cmdtp, flag, argc, argv, images,
-			IH_ARCH_I386, &initrd_start, &initrd_end);
+	ret = boot_get_ramdisk (argc, argv, images, IH_ARCH_I386,
+			&initrd_start, &initrd_end);
+	if (ret)
+		do_reset (cmdtp, flag, argc, argv);
 
 	if (images->legacy_hdr_valid) {
 		hdr = images->legacy_hdr_os;