Change error message for VrManagerService dump.

CTS requires an exact match on "Permission Denial"

Bug: 35354213
Test: Ran locally
Change-Id: I4e4ef49a66a97701fdda2136640c2ddc2b24ad8c
diff --git a/services/core/java/com/android/server/vr/VrManagerService.java b/services/core/java/com/android/server/vr/VrManagerService.java
index 69a9f80..f0ea527 100644
--- a/services/core/java/com/android/server/vr/VrManagerService.java
+++ b/services/core/java/com/android/server/vr/VrManagerService.java
@@ -383,7 +383,7 @@
         protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
             if (getContext().checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
                     != PackageManager.PERMISSION_GRANTED) {
-                pw.println("permission denied: can't dump VrManagerService from pid="
+                pw.println("Permission Denial: can't dump VrManagerService from pid="
                         + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid());
                 return;
             }