[VOL-5408]-Update versions of VOLTHA components for release

Change-Id: I2663892ece4f0441c038f3e086e5e2549e976399
Signed-off-by: Mahir Gunyel <mahir.gunyel@netsia.com>
diff --git a/VERSION b/VERSION
index 29eb291..40faed9 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.11.7
+1.11.8