Update serialization lib to v0.80 release

Signed-off-by: Eric Kunze <eric.kunze@arm.com>
Change-Id: Ia581eeeb1b1b9cc4db3b2a5992d26238b3d1b4fb
diff --git a/third_party/serialization_lib b/third_party/serialization_lib
index 9601cbd..2d33385 160000
--- a/third_party/serialization_lib
+++ b/third_party/serialization_lib
@@ -1 +1 @@
-Subproject commit 9601cbda5ff42dc4762e364d90093670931e1261
+Subproject commit 2d3338562530f903bf03391077015914514e2274