Update serialization lib to 1.0.0 draft version

Signed-off-by: Eric Kunze <eric.kunze@arm.com>
Change-Id: Ie912b5f079cd2d30ffc345a05fec29713106c1a6
diff --git a/third_party/serialization_lib b/third_party/serialization_lib
index 520b7ca..816f60e 160000
--- a/third_party/serialization_lib
+++ b/third_party/serialization_lib
@@ -1 +1 @@
-Subproject commit 520b7ca51f1aa2835d45ca7266a07b4028d449d2
+Subproject commit 816f60e88eb1327c1a5a1fe60e295aad0628116c