Don't log privapp-permissions violations for updated apps

Only warn about violations in non-updated apps. If an updated privileged
app started requesting a new privileged permission, it cannot be
whitelisted on system image, so we should revoke it as before, but not log.

Test: manual
Bug: 35633526
Change-Id: I6aacaed4be7bf6eaef08ea81ea49cd250c81e71e

services/core/java/com/android/server/pm/PackageManagerService.java

@@ -11662,7 +11662,8 @@ public class PackageManagerService extends IPackageManager.Stub {
             if (!whitelisted) {
                 Slog.w(TAG, "Privileged permission " + perm + " for package "
                         + pkg.packageName + " - not in privapp-permissions whitelist");
-                if (!mSystemReady) {
+                // Only report violations for apps on system image
+                if (!mSystemReady && !pkg.isUpdatedSystemApp()) {
                     if (mPrivappPermissionsViolations == null) {
                         mPrivappPermissionsViolations = new ArraySet<>();
                     }