[swss]: update swss submodule

[lguohan]

- What I did
update swss submodule

- How I did it
N/A

- How to verify it

admin@str-s6000-on-1:~$ redis-cli
127.0.0.1:6379> keys COPP*
1) "COPP_TABLE:trap.group.lldp.dhcp"
2) "COPP_TABLE:trap.group.arp"
3) "COPP_TABLE:default"
4) "COPP_TABLE:trap.group.bgp.lacp"
5) "COPP_TABLE:trap.group.ip2me"
127.0.0.1:6379> select 1
OK
127.0.0.1:6379[1]> keys *TRAP*
 1) "ASIC_STATE:SAI_OBJECT_TYPE_HOSTIF_TRAP:oid:0x220000000005de"
 2) "ASIC_STATE:SAI_OBJECT_TYPE_HOSTIF_TRAP_GROUP:oid:0x110000000005d5"
 3) "ASIC_STATE:SAI_OBJECT_TYPE_HOSTIF_TRAP:oid:0x220000000005a5"
 4) "ASIC_STATE:SAI_OBJECT_TYPE_HOSTIF_TRAP_GROUP:oid:0x110000000005d0"
 5) "ASIC_STATE:SAI_OBJECT_TYPE_HOSTIF_TRAP:oid:0x220000000005db"
 6) "ASIC_STATE:SAI_OBJECT_TYPE_HOSTIF_TRAP:oid:0x220000000005d6"
 7) "ASIC_STATE:SAI_OBJECT_TYPE_HOSTIF_TRAP:oid:0x220000000005d3"
 8) "ASIC_STATE:SAI_OBJECT_TYPE_HOSTIF_TRAP_GROUP:oid:0x110000000005dc"
 9) "ASIC_STATE:SAI_OBJECT_TYPE_HOSTIF_TRAP:oid:0x220000000005d2"
10) "ASIC_STATE:SAI_OBJECT_TYPE_HOSTIF_TRAP:oid:0x220000000005d7"
11) "ASIC_STATE:SAI_OBJECT_TYPE_HOSTIF_TRAP:oid:0x220000000005dd"
12) "ASIC_STATE:SAI_OBJECT_TYPE_HOSTIF_TRAP_GROUP:oid:0x110000000005d9"
13) "ASIC_STATE:SAI_OBJECT_TYPE_HOSTIF_TRAP:oid:0x220000000005d4"
14) "ASIC_STATE:SAI_OBJECT_TYPE_HOSTIF_TRAP:oid:0x220000000005d8"
15) "ASIC_STATE:SAI_OBJECT_TYPE_HOSTIF_TRAP_GROUP:oid:0x11000000000023"
127.0.0.1:6379[1]> 

- Description for the changelog
update swss submodule to fix a copp bug

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

[prsunny]

Just merged it as part of #1123