Fix bug 384082 - cppcheck is checking CMake generated files
Summary:
The patch removes cmake generated directory from cppcheck analysis.
BUG: 384082
Test Plan: Works as expected
Reviewers: KDevelop, kfunk
Reviewed By: KDevelop, kfunk
Subscribers: kdevelop-devel
Differential Revision: https://phabricator.kde.org/D11041