Revert not bool implementation, which was a hotfix for the ARMv7 bug.

This reverts commit 807308ab819e778915b8a6c5c5cdb68288233f72.
This reverts commit 399ddba00be2f45a4768f4a2e92d1c12d3e75552.
Merge branch 'development' of https://github.com/siemens/embb into development