crypto: print an error message if the password input failed

[hsyis]

Closes: #XXX

Description

Error message is not printed when password input fails.
So it's hard to determine the cause.

> ${CLI} keys add jack
Enter keyring passphrase:
Enter keyring passphrase:
Enter keyring passphrase:
panic: too many failed passphrase attempts

---

For contributor use:

• 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

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For admin use:

• Added appropriate labels to PR (ex. WIP, R4R, docs, etc)
• Reviewers assigned
• Squashed all commits, uses message "Merge pull request #XYZ: [title]" (coding standards)

[codecov]

Codecov Report

Merging #5739 into master will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #5739      +/-   ##
==========================================
- Coverage   36.52%   36.52%   -0.01%     
==========================================
  Files         336      336              
  Lines       32742    32743       +1     
==========================================
  Hits        11958    11958              
- Misses      19555    19556       +1     
  Partials     1229     1229              

[alexanderbez]

ACK :)

[alessio]

Good to go. Thanks!