arm/pci-test: skip on pci/pci-testdev probe failure

Some configurations don't have pci or pci-testdev. This patch
avoids saying FAIL in those cases. Instead we get SKIP.

Cc: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>

arm/pci-test.c

@@ -14,14 +14,19 @@ int main(void)
 {
 	int ret;
 
-	if (!pci_probe())
-		report_abort("PCI bus probing failed\n");
+	if (!pci_probe()) {
+		printf("PCI bus probing failed, skipping tests...\n");
+		return report_summary();
+	}
 
 	pci_print();
 
 	ret = pci_testdev();
-	report("PCI test device passed %d/%d tests",
-		ret >= NR_TESTS, ret > 0 ? ret : 0, NR_TESTS);
+	if (ret == -1)
+		report_skip("No PCI test device");
+	else
+		report("PCI test device passed %d/%d tests",
+			ret >= NR_TESTS, ret > 0 ? ret : 0, NR_TESTS);
 
 	return report_summary();
 }