Update git submodules

* Update docs/submodules/portal.git from branch 'master'
  to 3e66b597367acf02a8ce827ab1c159a4a506d11c
  - Merge "PeerBroadcastSocket(Make "channelMap" field final)"
  - PeerBroadcastSocket(Make "channelMap" field final)

    PeerBroadcastSocket.java - Make this "public static channelMap" field final(line:58)

    Issue-ID: PORTAL-500
    Change-Id: Id1227b06e64d37b29c66083da0ef8f37b2c032df
    Signed-off-by: Driptaroop Das <driptaroop.das@in.ibm.com>

diff --git a/docs/submodules/portal.git b/docs/submodules/portal.git
index 93dddb6..3e66b59 160000 (submodule)
--- a/docs/submodules/portal.git
+++ b/docs/submodules/portal.git
@@ -1 +1 @@
-Subproject commit 93dddb6732af3af4d90d27fb6872700a660e60d5
+Subproject commit 3e66b597367acf02a8ce827ab1c159a4a506d11c