audio: rename virtualizer stage to spatializer (2)

Update after renaming in system/media includes.

Bug: 188502620
Test: make
Change-Id: I12ed9fbcf2064190d3c59f8003b2d74c07c09a11
diff --git a/services/audiopolicy/service/Spatializer.cpp b/services/audiopolicy/service/Spatializer.cpp
index 3383515..345665c 100644
--- a/services/audiopolicy/service/Spatializer.cpp
+++ b/services/audiopolicy/service/Spatializer.cpp
@@ -67,7 +67,7 @@
 
     std::vector<effect_descriptor_t> descriptors;
     status_t status =
-            effectsFactoryHal->getDescriptors(FX_IID_VIRTUALIZER_STAGE, &descriptors);
+            effectsFactoryHal->getDescriptors(FX_IID_SPATIALIZER, &descriptors);
     if (status != NO_ERROR) {
         ALOGW("%s failed to get spatializer descriptor, error %d", __func__, status);
         return spatializer;