[submodule][202012]: Update sonic-utiliies submodule

* c2fb282 2021-01-29 | [ecnconfig] Allow ecn unit test to run without sudo (sonic-net#1390) [Neetha John]
* 6cc635b 2021-01-29 | [sonic-installer] Add information to syslog (sonic-net#1369) [Dmytro]
* 7a8024a 2021-01-27 | Prevent user from adding more then a single untagged VLAN to an interface (sonic-net#1382) [Eran Dahan]
* 41e62c6 2021-01-26 | [pcieutil] Add 'pcie-aer' sub-command to display AER stats (sonic-net#1169) [Arun Saravanan Balachandran]
* 47f412b 2021-01-26 | Improve robustness of consutil plugin loading (sonic-net#1353) [Samuel Angebault]
* 64aa1b8 2021-01-25 | [show] Fix warnings, related to gearbox, while show commands execution (sonic-net#1343) [maksymbelei95]
* ff226d0 2021-01-25 | Prevent configuring IP interface on a port which is a member of VLAN (sonic-net#1374) [Eran Dahan]
* f1522b9 2021-01-21 | [config_mgmt.py]: Set leaf-list to empty list while port breakout. (sonic-net#1268) [Praveen Chaudhary]
* 99c05d5 2021-01-21 | add vlan_intf_object only if there are ipv4 or ipv6 mappings (sonic-net#1377) [Sumukha Tumkur Vani]
* b082684 2021-01-21 | [ecn] Add tests for ecnconfig command (sonic-net#1372) [Neetha John]
* 23e0920 2021-01-21 | [sfpshow] Enhance QSFP-DD DOM information (sonic-net#1207) [shlomibitton]
* f4edba1 2021-01-20 | [ecnconfig] handle backend port names when extracting port I/F ID from the port name (sonic-net#1361) [Mahesh Maddikayala]

Signed-off-by: Danny Allen <[email protected]>

Author: daall