[201811][swss-common] advance swss-common sub module head (#5369)

* [201811][swss-common] advance swss-common sub module head

- Fix SubscriberStateTable::hasCachedData formula for a timing risk (#379)

Signed-off-by: Ying Xie <ying.xie@microsoft.com>

* Fix build of the unit test of SubscriberStateTable (#383)