Upgrade-Client Followup #2

[AdityaSripal]

Description

Upgrades to tendermint clients must now use the same client-chosen parameters as the previous client. This prevents a relayer from being able to modify any client-chosen parameter from the original parameters set by the relayer who created the client.

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Before we can merge this PR, please make sure that all the following items have been
checked off. If any of the checklist items are not applicable, please leave them but
write a little note why.

• Targeted PR against correct branch (see CONTRIBUTING.md)
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Code follows the module structure standards.
• Wrote unit and integration tests
• Updated relevant documentation (docs/) or specification (x/<module>/spec/)
• Added relevant godoc comments.
• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md
• Re-reviewed Files changed in the Github PR explorer
• Review Codecov Report in the comment section below once CI passes

[codecov]

Codecov Report

Merging #7460 into master will increase coverage by 0.00%.
The diff coverage is 62.50%.

@@           Coverage Diff           @@
##           master    #7460   +/-   ##
=======================================
  Coverage   55.24%   55.25%           
=======================================
  Files         591      591           
  Lines       36932    36948   +16     
=======================================
+ Hits        20404    20414   +10     
- Misses      14422    14426    +4     
- Partials     2106     2108    +2     

[fedekunze]

utACK

[cwgoes]

utACK, thanks!