Update git submodules

* Update docs/submodules/portal.git from branch 'master'
  to 69b62388c2347e3f36552803305dfd71f4358636
  - Unused classes delete from Portal
    
    These classes are unused anywhere in the Portal project.
    
    Issue-ID: PORTAL-655
    Change-Id: If92d0df0efb0b5120190a44c46b2fed31ba32b89
    Signed-off-by: Dominik Mizyn <d.mizyn@samsung.com>
    
diff --git a/docs/submodules/portal.git b/docs/submodules/portal.git
index 7324846..69b6238 160000
--- a/docs/submodules/portal.git
+++ b/docs/submodules/portal.git
@@ -1 +1 @@
-Subproject commit 73248465fc2867a3dd1a6494afb6b0774c9028f2
+Subproject commit 69b62388c2347e3f36552803305dfd71f4358636