modules: add block module annotations

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-14-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/block/iscsi-opts.c b/block/iscsi-opts.c
index afaf883..4f2da40 100644
--- a/block/iscsi-opts.c
+++ b/block/iscsi-opts.c
@@ -68,3 +68,4 @@
 }
 
 block_init(iscsi_block_opts_init);
+module_opts("iscsi");