Update makefiles to use filgroup syntax.

Test: mmma hardware/interfaces
Change-Id: I9f4457c78b7820c242d46359f0debe05d1b3e482
diff --git a/audio/effect/2.0/Android.bp b/audio/effect/2.0/Android.bp
index 29bc890..83a702a 100644
--- a/audio/effect/2.0/Android.bp
+++ b/audio/effect/2.0/Android.bp
@@ -26,21 +26,7 @@
     tools: ["hidl-gen"],
     cmd: "$(location hidl-gen) -o $(genDir) -Lc++ -randroid.hardware:hardware/interfaces -randroid.hidl:system/libhidl/transport android.hardware.audio.effect@2.0",
     srcs: [
-        "types.hal",
-        "IAcousticEchoCancelerEffect.hal",
-        "IAutomaticGainControlEffect.hal",
-        "IBassBoostEffect.hal",
-        "IDownmixEffect.hal",
-        "IEffect.hal",
-        "IEffectBufferProviderCallback.hal",
-        "IEffectsFactory.hal",
-        "IEnvironmentalReverbEffect.hal",
-        "IEqualizerEffect.hal",
-        "ILoudnessEnhancerEffect.hal",
-        "INoiseSuppressionEffect.hal",
-        "IPresetReverbEffect.hal",
-        "IVirtualizerEffect.hal",
-        "IVisualizerEffect.hal",
+        ":android.hardware.audio.effect@2.0_hal",
     ],
     out: [
         "android/hardware/audio/effect/2.0/types.cpp",
@@ -66,21 +52,7 @@
     tools: ["hidl-gen"],
     cmd: "$(location hidl-gen) -o $(genDir) -Lc++ -randroid.hardware:hardware/interfaces -randroid.hidl:system/libhidl/transport android.hardware.audio.effect@2.0",
     srcs: [
-        "types.hal",
-        "IAcousticEchoCancelerEffect.hal",
-        "IAutomaticGainControlEffect.hal",
-        "IBassBoostEffect.hal",
-        "IDownmixEffect.hal",
-        "IEffect.hal",
-        "IEffectBufferProviderCallback.hal",
-        "IEffectsFactory.hal",
-        "IEnvironmentalReverbEffect.hal",
-        "IEqualizerEffect.hal",
-        "ILoudnessEnhancerEffect.hal",
-        "INoiseSuppressionEffect.hal",
-        "IPresetReverbEffect.hal",
-        "IVirtualizerEffect.hal",
-        "IVisualizerEffect.hal",
+        ":android.hardware.audio.effect@2.0_hal",
     ],
     out: [
         "android/hardware/audio/effect/2.0/types.h",