[WIP] NSX: Fix VPC routed mode

[Pearl1594]

Description

This PR...

Types of changes

• Breaking change (fix or feature that would cause existing functionality to change)
• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Enhancement (improves an existing feature and functionality)
• Cleanup (Code refactoring and cleanup, that may add test cases)
• build/CI

Feature/Enhancement Scale or Bug Severity

Feature/Enhancement Scale

• Major
• Minor

Bug Severity

• BLOCKER
• Critical
• Major
• Minor
• Trivial

Screenshots (if appropriate):

How Has This Been Tested?

How did you try to break this feature and the system with this change?

[codecov]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (80365c8) 30.07% compared to head (588bf63) 30.99%.
Report is 11 commits behind head on nsx-integration.

Files	Patch %	Lines
...ain/java/com/cloud/network/vpc/VpcManagerImpl.java	33.33%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@                  Coverage Diff                  @@
##             nsx-integration    #8561      +/-   ##
=====================================================
+ Coverage              30.07%   30.99%   +0.92%     
+ Complexity             33323    31899    -1424     
=====================================================
  Files                   5377     5016     -361     
  Lines                 377958   349281   -28677     
  Branches               54939    49917    -5022     
=====================================================
- Hits                  113673   108270    -5403     
+ Misses                249177   226428   -22749     
+ Partials               15108    14583     -525     

Flag	Coverage Δ
simulator-marvin-tests	21.90% <33.33%> (-1.55%)	⬇️
uitests	?
unit-tests	16.79% <0.00%> (-0.01%)	⬇️

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[github-actions]

This pull request has merge conflicts. Dear author, please fix the conflicts and sync your branch with the base branch.