Add path to the core configuration directory to test build command and
replace .include asm directive with #include to enable preprocessing.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Some test suites, like MMU, need per-test initialization. Don't make them
redefine test macro, add test_init for that purpose.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
