[sonic-swss] submodule update

[crm]: Typecast to unit64_t to avoid divide by 0 during overflow (sonic-net#1550)
[vxlanmgr] Fix build error when compiling for armhf (32-bit) (sonic-net#1552)
[Dynamic buffer calc]  Support dynamic buffer calculation (sonic-net#1338)
[dvs] Clean-up dvs_database and dvs_common (sonic-net#1541)
[VxlanMgr] changes for EVPN VXLAN (sonic-net#1266)
Statistics support for Tx and Rx counters of different frame sizes (sonic-net#1536)
[orchagent/phy]: Add firmware info propagation (sonic-net#1540)

Signed-off-by: Sabareesh Kumar Anandan <[email protected]>