Update locations of qcom effects libraries to /vendor

The library locations were moved to /vendor via http://ag/1940019.

Bug: 36583367
Test: equalizer settings should be shown in Play music app
Change-Id: I0b55d480966b03e262036fffc9fece117e6fc796
(cherry picked from commit c958f8c5b6e8098b72ebaa689327e1965a53e32d)
diff --git a/audio_effects.conf b/audio_effects.conf
index 6d49e03..9cff551 100644
--- a/audio_effects.conf
+++ b/audio_effects.conf
@@ -16,7 +16,7 @@
     path /system/lib/soundfx/libvisualizer.so
   }
   visualizer_hw {
-    path /system/lib/soundfx/libqcomvisualizer.so
+    path /vendor/lib/soundfx/libqcomvisualizer.so
   }
   downmix {
     path /system/lib/soundfx/libdownmix.so
@@ -25,10 +25,10 @@
     path /system/lib/soundfx/libeffectproxy.so
   }
   offload_bundle {
-    path /system/lib/soundfx/libqcompostprocbundle.so
+    path /vendor/lib/soundfx/libqcompostprocbundle.so
   }
   qcom_pre_processing {
-    path /system/lib/soundfx/libqcomvoiceprocessing.so
+    path /vendor/lib/soundfx/libqcomvoiceprocessing.so
   }
   loudness_enhancer {
     path /system/lib/soundfx/libldnhncr.so