Cherry pick fixes for pinpad nanos

[jarevalo-ledger]

Description

Fix pin keypad behavior to pre-nbgl.

Changes include

• Bugfix (non-breaking change that solves an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (change that is not backwards-compatible and/or changes current functionality)
• Tests
• Documentation
• Other (for changes that might not fit in any category)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Please upload report for BASE (API_LEVEL_22@525c53e). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff               @@
##             API_LEVEL_22     #833   +/-   ##
===============================================
  Coverage                ?   35.76%           
===============================================
  Files                   ?       13           
  Lines                   ?     1591           
  Branches                ?        0           
===============================================
  Hits                    ?      569           
  Misses                  ?     1022           
  Partials                ?        0           

Flag	Coverage Δ
unittests	35.76% <ø> (?)

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