[fidl_table_validation] Add OWNERS

TEST: no code change
Change-Id: Ib9e81920c7aefcc0b40b3605d30d81ed404f1037
diff --git a/src/lib/fidl_table_validation/OWNERS b/src/lib/fidl_table_validation/OWNERS
new file mode 100644
index 0000000..b03cd85
--- /dev/null
+++ b/src/lib/fidl_table_validation/OWNERS
@@ -0,0 +1,3 @@
+turnage@google.com
+godtamit@google.com
+cramertj@google.com
\ No newline at end of file