[arista] Add tuning values for phys on 7280cr3 (#10084)

Why I did it
This change specifies the tuning values for each lane of the B52 phy chips. These values can be different for different ports. The values being set are under the assumption of optical transceivers. This change depends on the change to sonic-swss: sonic-net/sonic-swss#2158.

How to verify it
We verified the values are correctly set on the B52 chips of Arista 7280cr3, by reading them from the debug cli of the B52 driver.