libbb: mark stack in assembly files read-only

Signed-off-by: Ludwig Nussel <ludwig.nussel@suse.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/libbb/hash_md5_sha_x86-64.S b/libbb/hash_md5_sha_x86-64.S
index 1d55b91..2cdd220 100644
--- a/libbb/hash_md5_sha_x86-64.S
+++ b/libbb/hash_md5_sha_x86-64.S
@@ -1,6 +1,9 @@
 ### Generated by hash_md5_sha_x86-64.S.sh ###
 
 #if CONFIG_SHA1_SMALL == 0 && defined(__GNUC__) && defined(__x86_64__)
+#ifdef __linux__
+	.section	.note.GNU-stack, "", @progbits
+#endif
 	.section	.text.sha1_process_block64, "ax", @progbits
 	.globl	sha1_process_block64
 	.hidden	sha1_process_block64