linstor: disconnect-disk also search for resource name in Linstor

disconnectPhysicalDisk(String, KVMStoragePool) seems to calls the plugin
with the resource name instead of the device path, so we also have
to search for resource names, while cleaning up.

plugins/storage/volume/linstor/src/main/java/com/cloud/hypervisor/kvm/storage/LinstorStorageAdaptor.java

@@ -341,7 +341,7 @@ private boolean tryDisconnectLinstor(String volumePath, KVMStoragePool pool)
                     null,
                     null);
 
-            optRsc = getResourceByPath(resources, volumePath);
+            optRsc = getResourceByPathOrName(resources, volumePath);
         } catch (ApiException apiEx) {
             // couldn't query linstor controller
             s_logger.error(apiEx.getBestMessage());
@@ -401,9 +401,10 @@ public boolean disconnectPhysicalDisk(Map<String, String> volumeToDisconnect)
         return false;
     }
 
-    private Optional<ResourceWithVolumes> getResourceByPath(final List<ResourceWithVolumes> resources, String path) {
+    private Optional<ResourceWithVolumes> getResourceByPathOrName(
+            final List<ResourceWithVolumes> resources, String path) {
         return resources.stream()
-            .filter(rsc -> rsc.getVolumes().stream()
+            .filter(rsc -> getLinstorRscName(path).equalsIgnoreCase(rsc.getName()) || rsc.getVolumes().stream()
                 .anyMatch(v -> path.equals(v.getDevicePath())))
             .findFirst();
     }