Update git submodules

* Update docs/submodules/daisy from branch 'master'
  - Build kolla image in VM

    This PS:
    1. Build kolla image in VM
    2. Use sha512sum to check kolla image
    3. Delete suffix dot when there is no ext_tag

    Change-Id: I94d99e3ff69c47cc247051fae812bfdb29ff0246
    Signed-off-by: Zhijiang Hu <hu.zhijiang@zte.com.cn>

diff --git a/docs/submodules/daisy b/docs/submodules/daisy
index efaeb42..377cae8 160000 (submodule)
--- a/docs/submodules/daisy
+++ b/docs/submodules/daisy
@@ -1 +1 @@
-Subproject commit efaeb4289c8138a4a567f58a03d1cbc2b2a11c4e
+Subproject commit 377cae861b2c04d8934786acc4d07b41ba98acc5