Update language to comply with Android's inclusive language guidance

See https://source.android.com/setup/contribute/respectful-code for reference

 
BUG=161896447

Change-Id: I1096d5e7a0488fe0cfbc38874eb5a5aa99e717a6
diff --git a/media/libeffects/factory/EffectsXmlConfigLoader.cpp b/media/libeffects/factory/EffectsXmlConfigLoader.cpp
index 505be7c..30a9007 100644
--- a/media/libeffects/factory/EffectsXmlConfigLoader.cpp
+++ b/media/libeffects/factory/EffectsXmlConfigLoader.cpp
@@ -283,7 +283,7 @@
             }
             listPush(effectLoadResult.effectDesc.get(), subEffectList);
 
-            // Since we return a dummy descriptor for the proxy during
+            // Since we return a stub descriptor for the proxy during
             // get_descriptor call, we replace it with the corresponding
             // sw effect descriptor, but keep the Proxy UUID
             *effectLoadResult.effectDesc = *swEffectLoadResult.effectDesc;