cmake: Add PACKAGECONFIG option for debugger support
Starting from CMake version 2.27 support for interactive debugging of CMake
scripts and configurations was added. However, by default the `nativesdk-cmake`
is compiled with debugger support turned off.
This change adds debugger support for cmake
Signed-off-by: Nikhil R <nikhilr5@kpit.com> Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>