Set SDNRemoteArpMacAddress regKey for windows multitenancy

[ashvindeodhar]

SDNRemoteArpMacAddress is the registry key for the remote mac address.
This is needed in case of multitenancy to get arp response from within VM.
This is achieved by setting In-VM arp responder that always responds with
a fake mac address.

What this PR does / why we need it:

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #

Special notes for your reviewer:

Release note:

[codecov]

Codecov Report

Merging #330 into master will increase coverage by 0.37%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #330      +/-   ##
==========================================
+ Coverage   45.16%   45.54%   +0.37%     
==========================================
  Files          25       25              
  Lines        3538     3509      -29     
==========================================
  Hits         1598     1598              
+ Misses       1685     1656      -29     
  Partials      255      255

Impacted Files	Coverage Δ
telemetry/cnstelemetry.go	0% <0%> (ø)	⬆️
log/logger.go	56.47% <0%> (+1.92%)	⬆️
telemetry/telemetrybuffer.go	57.37% <0%> (+5.38%)	⬆️

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[jaer-tsun]

just some general comments

[jaer-tsun]

/lgtm