[new uImage] Don't pass kdb to ramdisk_high since we may not have one

We don't actually need the kdb param as we are just using it to get
bd->bi_memsize which we can get from gd->bd->bi_memsize.  Also, if we
boot via OF we might not actually fill out a kdb.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Marian Balakowicz <m8@semihalf.com>
diff --git a/include/image.h b/include/image.h
index 08566ea..1cec1db 100644
--- a/include/image.h
+++ b/include/image.h
@@ -388,7 +388,7 @@
 
 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
 ulong ramdisk_high (ulong alloc_current, ulong rd_data, ulong rd_len,
-		bd_t *kbd, ulong sp_limit, ulong sp,
+		ulong sp_limit, ulong sp,
 		ulong *initrd_start, ulong *initrd_end);
 
 ulong get_boot_sp_limit (ulong sp);