aidl: Improve Effect VTS naming

Use uuid in hexadecimal format in testcase name.

Change-Id: Ib687b6617060e4400a767f23ca0b26cece4005f1
diff --git a/audio/aidl/vts/VtsHalHapticGeneratorTargetTest.cpp b/audio/aidl/vts/VtsHalHapticGeneratorTargetTest.cpp
index 7c79d1b..d417e86 100644
--- a/audio/aidl/vts/VtsHalHapticGeneratorTargetTest.cpp
+++ b/audio/aidl/vts/VtsHalHapticGeneratorTargetTest.cpp
@@ -195,9 +195,7 @@
                     std::to_string(std::get<PARAM_VIBRATION_INFORMATION_Q_FACTOR>(info.param));
             std::string maxAmplitude =
                     std::to_string(std::get<PARAM_VIBRATION_INFORMATION_MAX_AMPLITUDE>(info.param));
-            std::string name = "Implementor_" + descriptor.common.implementor + "_name_" +
-                               descriptor.common.name + "_UUID_" +
-                               descriptor.common.id.uuid.toString() + "_hapticScaleId" +
+            std::string name = getPrefix(descriptor) + "_hapticScaleId" +
                                hapticScaleID + "_hapticScaleVibScale" + hapticScaleVibScale +
                                "_resonantFrequency" + resonantFrequency + "_qFactor" + qFactor +
                                "_maxAmplitude" + maxAmplitude;