Update git submodules

* Update docs/submodules/portal.git from branch 'master'
  to 88f48d47dc427e73842c0b65a6b544c8229c2773
  - Merge "Don't give the user the exact stack trace of the exception"
  - Don't give the user the exact stack trace of the exception

    Catching the exception in the SecurityXssFilter class.

    Issue-ID: OJSI-192
    Change-Id: I8d9d7a3032f98afcb58285b13b13d5ce35fddadd
    Signed-off-by: Piotr Borelowski <p.borelowski@partner.samsung.com>

diff --git a/docs/submodules/portal.git b/docs/submodules/portal.git
index ee8d6a8..88f48d4 160000 (submodule)
--- a/docs/submodules/portal.git
+++ b/docs/submodules/portal.git
@@ -1 +1 @@
-Subproject commit ee8d6a877f7709f28da43b0f10baf659876c4bed
+Subproject commit 88f48d47dc427e73842c0b65a6b544c8229c2773