sm7125-common: audio-impl: Migrate String8|16.setTo to assignment operator

Bug: 295394788
Test: make checkbuild
Change-Id: Ic98514f48399115046029e68883408090f0cd0db

audio/impl/ParametersUtil.cpp

@@ -107,7 +107,7 @@ std::unique_ptr<AudioParameter> ParametersUtil::getParams(const AudioParameter&
     String8 paramsAndValues;
     char* halValues = halGetParameters(keys.keysToString().c_str());
     if (halValues != NULL) {
-        paramsAndValues.setTo(halValues);
+        paramsAndValues = halValues;
         free(halValues);
     } else {
         paramsAndValues.clear();