[submodule] Update swss submodule

[daall]

Signed-off-by: Danny Allen daall@microsoft.com

• Add DPB-ACL scale tests (sonic-net/sonic-swss@e1a5e9a)
• [dvs] Update drop counter tests for SAI 1.6 (sonic-net/sonic-swss@1be35ac)
• Bulk routes and next hop group members (sonic-net/sonic-swss@bfaadcd)
• [vnet] Fix IP2ME route creation logic for BITMAP VNET interface (sonic-net/sonic-swss@cdffff3)
• [MultiDB] fix wrong MultiDB APIs usage in mclags (sonic-net/sonic-swss@0e0f039)
• [portsyncd] fix default select timeout (sonic-net/sonic-swss@727a518)
• [proxy_arp] Implement proxy ARP feature (sonic-net/sonic-swss@4798584)
• Fixing compilation issue in 32-bit arch (marvell-armhf) (sonic-net/sonic-swss@69a980e)
• [aclorch] Add support for creating ingress and egress MIRROR tables concurrently (sonic-net/sonic-swss@a9dbc83)
• [orchagent] Set default MTU for the underlay loopback interface (sonic-net/sonic-swss@e09dbc2)
• [vstest]: unmark fixture for create/remove_dpb_config_file (sonic-net/sonic-swss@ea002e5)
• Corrected the copp rule as per NAT HLD (sonic-net/sonic-swss@4cc1d1f)
• [MultiDB] Use database name instead of database ID (sonic-net/sonic-swss@2deb6e0)
• Revert "[portsorch] Enable port-level buffer drop counters ([sonic-utilities]: update sonic-utilities submodule #1237)" (sonic-net/sonic-swss@a3a010a)

- Why I did it
To update the submodule in master. Also fixes #4586.

- How I did it

- How to verify it

- Description for the changelog

- A picture of a cute animal (not mandatory but encouraged)

[daall]

retest vsimage please

[daall]

retest vsimage please