Add GNSS AIDL VTS tests

Copy existing VTS tests from HIDL HALs to AIDL, to make sure AIDL has at
least the same API coverage.

Bug: 216523795
Test: atest VtsHalGnssTargetTest
Change-Id: I0f09ba2b5541e19f28b8689ec93ce6c2ba6798ff
diff --git a/gnss/common/utils/default/Utils.cpp b/gnss/common/utils/default/Utils.cpp
index 4e6a718..a519d3a 100644
--- a/gnss/common/utils/default/Utils.cpp
+++ b/gnss/common/utils/default/Utils.cpp
@@ -217,7 +217,8 @@
                        .biasUncertaintyNs = 47514.989972114563,
                        .driftNsps = -51.757811607455452,
                        .driftUncertaintyNsps = 310.64968328491528,
-                       .hwClockDiscontinuityCount = 1};
+                       .hwClockDiscontinuityCount = 1,
+                       .referenceSignalTypeForIsb = signalType};
 
     ElapsedRealtime timestamp = {
             .flags = ElapsedRealtime::HAS_TIMESTAMP_NS | ElapsedRealtime::HAS_TIME_UNCERTAINTY_NS,