Allow uninstantiated WeaverTest

Add back GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST, which I had
accidentally removed while merging the AIDL and HIDL tests.  I think
this is still needed on devices that don't support Weaver at all.

Bug: 291284381
Test: atest VtsHalWeaverTargetTest
Change-Id: Iac1b4476620e51c645e3ad57444ee386cb879029
diff --git a/weaver/vts/VtsHalWeaverTargetTest.cpp b/weaver/vts/VtsHalWeaverTargetTest.cpp
index 9ee6d93..754d467 100644
--- a/weaver/vts/VtsHalWeaverTargetTest.cpp
+++ b/weaver/vts/VtsHalWeaverTargetTest.cpp
@@ -393,6 +393,8 @@
     EXPECT_EQ(response.status, WeaverReadStatus::FAILED);
 }
 
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(WeaverTest);
+
 // Instantiate the test for each HIDL Weaver service.
 INSTANTIATE_TEST_SUITE_P(
         PerHidlInstance, WeaverTest,