Run VmAttestationTests for vendor API >= 202504

As VM attestation is becoming a must feature since VSR 202504.

Bug: 365692904
Test: atest VmAttestationTests
Change-Id: Ie002a9f4a4427a158b1919cfebbfc21f1cd25f91
diff --git a/tests/vm_attestation/src/java/com/android/virt/vm_attestation/testapp/VmAttestationTests.java b/tests/vm_attestation/src/java/com/android/virt/vm_attestation/testapp/VmAttestationTests.java
index ce23b7b..f9cd78d 100644
--- a/tests/vm_attestation/src/java/com/android/virt/vm_attestation/testapp/VmAttestationTests.java
+++ b/tests/vm_attestation/src/java/com/android/virt/vm_attestation/testapp/VmAttestationTests.java
@@ -68,9 +68,7 @@
         assume().withMessage("Remote attestation is not supported on CF.")
                 .that(isCuttlefish())
                 .isFalse();
-        assume().withMessage("Test needs Remote Attestation support")
-                .that(getVirtualMachineManager().isRemoteAttestationSupported())
-                .isTrue();
+        ensureVmAttestationSupported();
 
         VirtualMachineConfig.Builder builder =
                 newVmConfigBuilderWithPayloadBinary(VM_PAYLOAD_PATH)