[qemu-xen staging-4.16] Update dtc to include build fix

[patchbot@xxxxxxx]

commit 770026a27872174f66e420f643abce0756a128f1
Author:     Anthony PERARD <anthony.perard@xxxxxxxxxx>
AuthorDate: Mon Jul 17 12:05:34 2023 +0100
Commit:     Anthony PERARD <anthony.perard@xxxxxxxxxx>
CommitDate: Mon Jul 17 12:05:34 2023 +0100

    Update dtc to include build fix
    
    Build fix:
        libfdt: Correct condition for reordering blocks
    
    This change also include one extra commit that seems to be a unit test
    only.
    
    Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
---
 dtc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dtc b/dtc
index 85e5d83984..b6910bec11 160000
--- a/dtc
+++ b/dtc
@@ -1 +1 @@
-Subproject commit 85e5d839847af54efab170f2b1331b2a6421e647
+Subproject commit b6910bec11614980a21e46fbccc35934b671bd81
--
generated by git-patchbot for /home/xen/git/qemu-xen.git#staging-4.16