[submodule update] sonic-utilities

d324eaec945081f8718468b39a8cf12dae965fd5 (HEAD -> 201911, origin/201911) [PFCWD] Fix 'start' pfcwd command (#1345)
235c61cccbbbb1f948f53b561c98888681b7071a [ecnconfig] handle backend port names when extracting port I/F ID from the port name (#1361)
7f5c3b497148fdd8e710131c5ac3f9f0a5f2cddf Drop explict 3 seconds pause between two object updates/deletes. (#1359)
12c899207917751eac719916be69c0078671963d add vlan_intf_object only if there are ipv4 or ipv6 mappings (#1377)
52ce2c32bf4e267d043a739641f5eefba3f3910f Add  subcommand description to interfaces counters (#1373)
Signed-off-by: Abhishek Dosi <abdosi@microsoft.com>