bootstd: Add an NVMe bootdev

Add a bootdev for NVMe so that these devices can be used with standard
boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/nvme/nvme.c b/drivers/nvme/nvme.c
index 6d0d3f3..74e7a5b 100644
--- a/drivers/nvme/nvme.c
+++ b/drivers/nvme/nvme.c
@@ -6,6 +6,7 @@
 
 #include <common.h>
 #include <blk.h>
+#include <bootdev.h>
 #include <cpu_func.h>
 #include <dm.h>
 #include <errno.h>
@@ -893,6 +894,10 @@
 		if (ret)
 			goto free_id;
 
+		ret = bootdev_setup_sibling_blk(ns_udev, "nvme_bootdev");
+		if (ret)
+			return log_msg_ret("bootdev", ret);
+
 		ret = blk_probe_or_unbind(ns_udev);
 		if (ret)
 			goto free_id;