KeyMint VTS: add missing purpose/algo am: ca76a75096 am: 9e52270470

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/15624902

Change-Id: Ie94f1472ec2da3f1ad9108b2b169e149e7922b89
diff --git a/security/keymint/aidl/vts/functional/KeyMintTest.cpp b/security/keymint/aidl/vts/functional/KeyMintTest.cpp
index 931317f..651b21f 100644
--- a/security/keymint/aidl/vts/functional/KeyMintTest.cpp
+++ b/security/keymint/aidl/vts/functional/KeyMintTest.cpp
@@ -1843,12 +1843,13 @@
     if (SecLevel() == SecurityLevel::STRONGBOX) return;
 
     auto result = GenerateKey(AuthorizationSetBuilder()
+                                      .Authorization(TAG_ALGORITHM, Algorithm::EC)
                                       .Authorization(TAG_KEY_SIZE, 224)
                                       .Authorization(TAG_EC_CURVE, EcCurve::P_256)
+                                      .SigningKey()
                                       .Digest(Digest::NONE)
                                       .SetDefaultValidity());
-    ASSERT_TRUE(result == ErrorCode::INVALID_ARGUMENT ||
-                result == ErrorCode::UNSUPPORTED_ALGORITHM);
+    ASSERT_TRUE(result == ErrorCode::INVALID_ARGUMENT);
 }
 
 /*