Update git submodules

* Update docs/submodules/dovetail from branch 'master'
  - Add stop on failure logic and CLI option

    - Improve test execution control by adding stop on failure flag
    - Modify test check function to return value regardless of whether
    report or local file option is employed
    - Modify run test loop to check for failure after every test case
    if stop flag set

    Change-Id: I27a4f3aaaa8b8cb8c52eb3f092f52048980abb44
    Signed-off-by: Eddie Arrage <eddie.arrage@huawei.com>

diff --git a/docs/submodules/dovetail b/docs/submodules/dovetail
index 136102c..8e26609 160000 (submodule)
--- a/docs/submodules/dovetail
+++ b/docs/submodules/dovetail
@@ -1 +1 @@
-Subproject commit 136102c5671dd39ed1f5247f427b9359eac5eeeb
+Subproject commit 8e266094f9bb31e444f90263119389d857d1001e