Fix a typo when checking custom policy

Bug: n/a
Change-Id: I5a7cdce22b5b87734c48b3347c1901889b7aa49b
Test: presubmit
Flag: EXEMPT trivial fix
diff --git a/services/companion/java/com/android/server/companion/virtual/VirtualDeviceImpl.java b/services/companion/java/com/android/server/companion/virtual/VirtualDeviceImpl.java
index 3d67ed4..281a2ce 100644
--- a/services/companion/java/com/android/server/companion/virtual/VirtualDeviceImpl.java
+++ b/services/companion/java/com/android/server/companion/virtual/VirtualDeviceImpl.java
@@ -909,7 +909,7 @@
                 break;
             case POLICY_TYPE_CLIPBOARD:
                 if (Flags.crossDeviceClipboard()) {
-                    if (policyType == DEVICE_POLICY_CUSTOM
+                    if (devicePolicy == DEVICE_POLICY_CUSTOM
                             && mContext.checkCallingOrSelfPermission(ADD_TRUSTED_DISPLAY)
                             != PackageManager.PERMISSION_GRANTED) {
                         throw new SecurityException("Requires ADD_TRUSTED_DISPLAY permission to "