fix static route activation condition

[arifogel]

• if a static route matches its own next-hop, a matching route must be
  more specific

[batfish-bot]

This change is 

[dhalperi]

Reviewed 2 of 2 files at r1.
Reviewable status: complete! all files reviewed, all discussions resolved

[codecov]

Codecov Report

Merging #6824 (2664134) into master (fd170a7) will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master    #6824      +/-   ##
============================================
- Coverage     70.07%   70.07%   -0.01%     
+ Complexity    36406    36401       -5     
============================================
  Files          3029     3029              
  Lines        153598   153601       +3     
  Branches      18412    18412              
============================================
- Hits         107640   107630      -10     
- Misses        37298    37305       +7     
- Partials       8660     8666       +6     

Impacted Files	Coverage Δ	Complexity Δ
...batfish/dataplane/protocols/StaticRouteHelper.java	94.44% <100.00%> (+1.11%)	7.00 <3.00> (ø)
...g/batfish/datamodel/flow/IncomingSessionScope.java	84.61% <0.00%> (-15.39%)	7.00% <0.00%> (-1.00%)
...batfish/representation/aws/LoadBalancerTarget.java	54.16% <0.00%> (-4.17%)	8.00% <0.00%> (ø%)
.../org/batfish/dataplane/rib/RouteAdvertisement.java	83.67% <0.00%> (-4.09%)	18.00% <0.00%> (-1.00%)
...col/src/main/java/org/batfish/role/InferRoles.java	91.36% <0.00%> (-1.37%)	52.00% <0.00%> (-1.00%)
...main/java/org/batfish/datamodel/acl/AclTracer.java	62.89% <0.00%> (-1.26%)	43.00% <0.00%> (-1.00%)
...java/org/batfish/dataplane/ibdp/VirtualRouter.java	90.42% <0.00%> (-0.31%)	210.00% <0.00%> (-1.00%)
...src/main/java/org/batfish/coordinator/WorkMgr.java	75.50% <0.00%> (-0.16%)	246.00% <0.00%> (-1.00%)
...src/main/java/org/batfish/coordinator/PoolMgr.java	55.95% <0.00%> (+1.19%)	14.00% <0.00%> (+1.00%)

[arifogel]

Reviewed 1 of 1 files at r2.
Reviewable status: complete! all files reviewed, all discussions resolved