Update git submodules

* Update docs/submodules/portal.git from branch 'master'
  to 76646d6af93f2de7c55e40f422aff0ecd6aa622d
  - Merge "XSS Vulnerability fix in AppContactUsController"
  - XSS Vulnerability fix in AppContactUsController
    
    Custom data validator used to fix this issue.
    
    Issue-ID: OJSI-15
    Signed-off-by: Dominik Mizyn <d.mizyn@samsung.com>
    Change-Id: Ie8df4df552cfe53e3839c7021284f0226ea56a39
    
diff --git a/docs/submodules/portal.git b/docs/submodules/portal.git
index e4bbb52..76646d6 160000
--- a/docs/submodules/portal.git
+++ b/docs/submodules/portal.git
@@ -1 +1 @@
-Subproject commit e4bbb52912d2a28fd543fb6412c4e98c0730d1ce
+Subproject commit 76646d6af93f2de7c55e40f422aff0ecd6aa622d