qemucaps2xmltest: fix test to successfully run without kvm support

Function virQEMUCapsInitGuestFromBinary detect kvm support by testing
whether /dev/kvm exists or whether we pass path to kvmbin.  Provide the
path we are testing via kvmbin for testing purpose instead of detecting
presence of /dev/kvm to successfully run the tests on all hosts.
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

tests/qemucaps2xmltest.c

@@ -118,8 +118,8 @@ testGetCaps(char *capsData, const testQemuData *data)
     if (virQEMUCapsInitGuestFromBinary(caps,
                                        "/usr/bin/qemu-system-i386",
                                        qemuCaps,
-                                       NULL,
-                                       NULL,
+                                       "/usr/bin/qemu-system-i386",
+                                       qemuCaps,
                                        data->guestarch) < 0) {
         fprintf(stderr, "failed to create the capabilities from qemu");
         goto error;