[PATCH] fit-dtb.blob.gz: Pass "-n" to gzip

[Tom Rini]

Sometimes when building a platform such as imx28_btt3 we can get an
error such as:

gzip: fit-dtb.blob: warning: file timestamp out of range for gzip format
make[1]: *** [Makefile:1219: fit-dtb.blob.gz] Error 2
make[1]: *** Deleting file 'fit-dtb.blob.gz'
make: *** [Makefile:186: sub-make] Error 2

This is typically resolved by telling gzip to ignore the timestamp.

Signed-off-by: Tom Rini <trini at konsulko.com>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index e60bbb01a004..5a238ab9b5da 100644
--- a/Makefile
+++ b/Makefile
@@ -1216,7 +1216,7 @@ FINAL_DTB_CONTAINER = fit-dtb.blob
 endif
 
 fit-dtb.blob.gz: fit-dtb.blob
-	@gzip -kf9 $< > $@
+	@gzip -nkf9 $< > $@
 
 fit-dtb.blob.lzo: fit-dtb.blob
 	@lzop -f9 $< > $@
-- 
2.43.0