Make the info list property in nbgl_tipBox_t non-const

[apaillier-ledger]

Description

To make it easier to use, since it wasn't a pointer to a struct, but rather the struct itself.

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 ✅

Project coverage is 35.49%. Comparing base (930d28e) to head (5a77ca7).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #828   +/-   ##
=======================================
  Coverage   35.49%   35.49%           
=======================================
  Files          13       13           
  Lines        1606     1606           
=======================================
  Hits          570      570           
  Misses       1036     1036           

Flag	Coverage Δ
unittests	35.49% <ø> (ø)

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