tests: nodedevxml2xml: add test for SCSI target

Let's add a test for SCSI target nodedev devices.
Signed-off-by: NBjoern Walk <bwalk@linux.vnet.ibm.com>

tests/nodedevschemadata/scsi_target0_0_0.xml

+<device>
+  <name>scsi_target0_0_0</name>
+  <parent>scsi_host0</parent>
+  <capability type='scsi_target'>
+    <target>target0:0:0</target>
+  </capability>
+</device>

tests/nodedevxml2xmltest.c

@@ -93,6 +93,7 @@ mymain(void)
     DO_TEST("pci_8086_0c0c_snd_hda_intel");
     DO_TEST("pci_0000_00_02_0_header_type");
     DO_TEST("pci_0000_00_1c_0_header_type");
+    DO_TEST("scsi_target0_0_0");
 
     return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
 }