[Port Mgr] Fix router resource operation type

[xieus]

This PR proposes a fix to two "neighbor resource operation type" issue introduced by PR #603.

Issue Description

When the network configuration message is constructed, PM needs to initialize the value of ResourceOperationTypes. The previous PR wrongly put Router type as a Neighbor type, which further introduces duplicated neighbor entities in the List.

[cj-chung]

LGTM

[codecov-commenter]

Codecov Report

Merging #605 (71a8c86) into master (5f71b54) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##             master     #605   +/-   ##
=========================================
  Coverage     32.75%   32.75%           
  Complexity     1248     1248           
=========================================
  Files           522      522           
  Lines         13117    13117           
  Branches       1610     1610           
=========================================
+ Hits           4296     4297    +1     
+ Misses         8236     8235    -1     
  Partials        585      585           

Impacted Files	Coverage Δ	Complexity Δ
...lcor/portmanager/processor/DataPlaneProcessor.java	69.72% <100.00%> (ø)	39.00 <0.00> (ø)
...alcor/elasticipmanager/dao/ElasticIpAllocator.java	63.81% <0.00%> (+0.27%)	48.00% <0.00%> (ø%)

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