[sonic-py-swsssdk] Update submodule (sonic-net#2660)

yxieca · tiantianlv · commit a9d40c825a55 · 2019-04-10T14:00:15.000+08:00
diff --git a/src/sonic-py-swsssdk b/src/sonic-py-swsssdk
@@ -1 +1 @@
-Subproject commit cb4fec9d078f72ca378ecba5e6a112e3028c2221
+Subproject commit 4cee38534919e34f407363ac3ab5f31b4d09be6d
