scripts: tests: twister_blackbox: Add -i flag to qemu tests

An -i flag allows easier debugging for blackbox qemu tests.

Signed-off-by: Lukasz Mrugala <[email protected]>

scripts/tests/twister_blackbox/test_qemu.py

@@ -85,7 +85,7 @@ def teardown_class(cls):
         ]
     )
     def test_emulation_only(self, capfd, test_path, test_platforms, expected):
-        args = ['-T', test_path, '--emulation-only'] + \
+        args = ['-i', '-T', test_path, '--emulation-only'] + \
                [val for pair in zip(
                    ['-p'] * len(test_platforms), test_platforms
                ) for val in pair]