[Merged by Bors] - p2p: add back disable dht option

[countvonzero]

Motivation

p2p option disable-dht was removed by mistake

[countvonzero]

bors merge

[codecov]

Codecov Report

Merging #5111 (f2efa7a) into develop (3b1b118) will decrease coverage by 0.1%.
The diff coverage is 15.7%.

@@            Coverage Diff            @@
##           develop   #5111     +/-   ##
=========================================
- Coverage     77.0%   77.0%   -0.1%     
=========================================
  Files          257     257             
  Lines        30287   30296      +9     
=========================================
- Hits         23349   23346      -3     
- Misses        5413    5424     +11     
- Partials      1525    1526      +1     

Files	Coverage Δ
p2p/host.go	47.3% <ø> (ø)
p2p/upgrade.go	63.6% <0.0%> (-1.3%)	⬇️
p2p/dhtdiscovery/discovery.go	72.0% <18.7%> (-1.4%)	⬇️

... and 6 files with indirect coverage changes

[bors]

Pull request successfully merged into develop.

Build succeeded!

The publicly hosted instance of bors-ng is deprecated and will go away soon.

If you want to self-host your own instance, instructions are here.
For more help, visit the forum.

If you want to switch to GitHub's built-in merge queue, visit their help page.

• ci-status
• systest-status