coverity: Improve NXP source file coverage using new build features

By leveraging several build flags, we are able to compile additional
source files for offline coverity scan analysis.

Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
Change-Id: Ic5e9af61fbce4e0c8aea2986535e196053ba56ed
2 files changed