Arista BGP: convert EVPN import policy

[progwriter]

No description provided.

[batfish-bot]

This change is 

[codecov]

Codecov Report

Merging #5367 into master will increase coverage by <.01%.
The diff coverage is 66.66%.

@@             Coverage Diff              @@
##             master    #5367      +/-   ##
============================================
+ Coverage      73.3%    73.3%   +<.01%     
- Complexity    32027    32029       +2     
============================================
  Files          2623     2623              
  Lines        129156   129159       +3     
  Branches      15534    15535       +1     
============================================
+ Hits          94672    94677       +5     
  Misses        26961    26961              
+ Partials       7523     7521       -2

Impacted Files	Coverage Δ	Complexity Δ
...atfish/representation/cisco/AristaConversions.java	73.71% <66.66%> (-0.06%)	72 <0> (+1)
...batfish/src/main/java/org/batfish/main/Driver.java	38.07% <0%> (-0.26%)	28% <0%> (ø)
...tfish/representation/cisco/CiscoConfiguration.java	85.72% <0%> (+0.12%)	525% <0%> (+1%)	⬆️
...rc/main/java/org/batfish/datamodel/flow/Trace.java	90.32% <0%> (+3.22%)	13% <0%> (+1%)	⬆️

[dhalperi]

Reviewed 3 of 3 files at r1.
Reviewable status: complete! all files reviewed, all discussions resolved