Update git submodules

* Update docs/submodules/promise from branch 'master'
  - Auto Generated INFO.yaml file

    INFO.yaml meant to be machine readable.
    This file was auto generated from an ldap lookup
    and your projects INFO file.

    Meeting times are not currently filled out.
    please ammend this patchset to complete

    Going forward comitter promotions should be done
    against this file.

    PTLs:
    Must be merged for you to gain delete access on
    testresults.opnfv.org

    If project_lead: is missing (my script could not parse)
    please amend with same from commiters section eg:

    project_lead: &opnfv_$project_ptl
        name: 'Lead Name'
        email: 'lead email'
        id: 'lead lfid'
        company: 'lead company'

    Change-Id: Ie0cae9a35db14235e89fb7291cc084c7cd5f94ae
    Signed-off-by: agardner <agardner@linuxfoundation.org>

diff --git a/docs/submodules/promise b/docs/submodules/promise
index 335b844..7c28b66 160000 (submodule)
--- a/docs/submodules/promise
+++ b/docs/submodules/promise
@@ -1 +1 @@
-Subproject commit 335b8446a9cb142b82a6b5cd1c2231d8185416c9
+Subproject commit 7c28b66a376d8a441c40c2926b218497d63516a3