coding_guideline: Add an option to enforce rules

Add a Kconfig option to enable compiler flags that help to enforce
some code guideline rules.

Note: As the current code base is not in compliance with the adopted
code guideline, some rules will generate warnings during the
build. This is intended to help to spot violations.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
4 files changed