vendor: bring back DSPManager effects backend

it has more features then standard android effects

devices that dont want to use it should simply
add a copy of standard audio_effects.conf file into the 
device and copy this into /system/etc/audio_effects_vendor.conf
using that overwrite mechanism

Change-Id: Ibc21efcc3125fb299eb26371c93f7559df159461
diff --git a/config/packages.mk b/config/packages.mk
index 1213c30..e4acc55 100644
--- a/config/packages.mk
+++ b/config/packages.mk
@@ -16,8 +16,9 @@
     OmniStyle \
     QuickSearchBox \
     OmniClockOSS \
-    MusicFX
-
+    MusicFX \
+    audio_effects.conf \
+    libcyanogen-dsp
 
 PRODUCT_PACKAGES += \
     CellBroadcastReceiver