nfp: update Agilio SmartNIC flower firmware to rev AOTC-2.9.A.37

This version of the firmware adds a fix to ensure that the vlan prio/pcp
field is extracted correctly for matching in hardware.

Signed-off-by: Louis Peens <louis.peens@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Tested-by: Brendan Galloway <brendan.galloway@netronome.com>