Updated git submodules

Project: multicloud/framework amsterdam 6b4d59475fb8f4c3cd74632672665ae0c3ed12e2

Make cloud provider plugin configurable

The cloud provider plugin info stores in
pub/config/provider-plugin.json, by editing this file other
plugin provider can easily add a new plugin.

Change-Id: I499fb05758e76eb2bda6bb4e9fafd302e810dddc
Issue-ID: MULTICLOUD-132
Signed-off-by: Ethan Lynn <ethanlynnl@vmware.com>
(cherry picked from commit 1ab719d0d310b0c0640eeeb4d1cf87dcae4c3168)

diff --git a/docs/submodules/multicloud/framework.git b/docs/submodules/multicloud/framework.git
index dfd494f..6b4d594 160000 (submodule)
--- a/docs/submodules/multicloud/framework.git
+++ b/docs/submodules/multicloud/framework.git
@@ -1 +1 @@
-Subproject commit dfd494fc4f41e44302c7ddf361b597aa486993e7
+Subproject commit 6b4d59475fb8f4c3cd74632672665ae0c3ed12e2