fdt_support: delete force argument of fdt_initrd()

After all, we have realized "force" argument is completely
useless. fdt_initrd() was always called with force = 1.

We should always want to do the same thing
(set appropriate value to the property)
even if the property already exists.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/common/cmd_fdt.c b/common/cmd_fdt.c
index a6744ed..cc2b0e2 100644
--- a/common/cmd_fdt.c
+++ b/common/cmd_fdt.c
@@ -582,7 +582,7 @@
 		}
 
 		fdt_chosen(working_fdt, 1);
-		fdt_initrd(working_fdt, initrd_start, initrd_end, 1);
+		fdt_initrd(working_fdt, initrd_start, initrd_end);
 
 #if defined(CONFIG_FIT_SIGNATURE)
 	} else if (strncmp(argv[1], "che", 3) == 0) {