fix: typo 'Tpye' -> 'Type'

[aptgetgit]

Description

Fixes a typo in a doc comment that appears in every chapter's driver.rs, so this corrects all 18 occurrences.

Related Issue:

Pre-commit steps

• Tested on QEMU and real HW Rasperry Pi.
  • Not needed if it is just a README change or similar.
• Ran ./contributor_setup.sh followed by ./devtool ready_for_publish
  • You'll need Ruby with Bundler and NPM installed locally.
  • If no Rust-related files were changed, ./devtool ready_for_publish_no_rust can be used instead (faster).
  • This step is optional, but much appreciated if done.

[aptgetgit]

Failing checks are not related to my changes; this patch only edits comments and doesn't touch any logic.
Happy to look into fixing the workflow separately if that'd be useful.

[BartMassey]

We'll take a look at all of this next week. Thanks much!