tests: Rename pc-cpu-test.c to cpu-plug-test.c

The test will be extended to work on other architectures, too, so let's
use a more generic name for the file and the functions in here first.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 files changed