[swss-common] update submodule for sonic-swss-common (#3863)

dzhangalibaba · qiluo-msft · commit 335514bf87ee · 2019-12-09T18:42:29.000-08:00
diff --git a/src/sonic-swss-common b/src/sonic-swss-common
@@ -1 +1 @@
-Subproject commit a4a1e108afb3e75717e204da49a975681d964e8c
+Subproject commit 29a2cdfe9ea9bb0c4d2d82be9428228a8ab6b9d4
