[utilities] advance utililies submodule head

Include fullowing changes:

* 9fc630c 2021-05-11 | [sonic_installer] temporary fix: don't migrate packages on aboot platforms (sonic-net#1607) (github/master) [Stepan Blyshchak]
* fde1d95 2021-05-11 | [config][vxlan] fix 'vxlan evpn_nvo add' command error (sonic-net#1511) [shikenghua]
* 331c5a5 2021-05-10 | [config]: Use mod_entry when editing VLAN_INTERFACE (sonic-net#1602) [Lawrence Lee]
* 8c2980a 2021-05-08 | [sonic-utilities] CLI support for port auto negotiation (sonic-net#1568) [Junchao-Mellanox]
* a71ff02 2021-05-06 | [sfpshow] Gracefully handle improper 'specification_compliance' field (sonic-net#1594) [Joe LeVeque]

Signed-off-by: Ying Xie <ying.xie@microsoft.com>