Fix build warnings

Change-Id: I79f4d7052a4c0a9fde144063f44a9c8c9dd575d5
diff --git a/services/audioflinger/audio-resampler/AudioResamplerCoefficients.cpp b/services/audioflinger/audio-resampler/AudioResamplerCoefficients.cpp
index d45d697..7fc03a6 100644
--- a/services/audioflinger/audio-resampler/AudioResamplerCoefficients.cpp
+++ b/services/audioflinger/audio-resampler/AudioResamplerCoefficients.cpp
@@ -34,9 +34,9 @@
 
     ALOGV("readResamplerCoefficients");
     if (upSample) {
-        return up_sampler_filter_coefficients;
+        return (const int32_t *) up_sampler_filter_coefficients;
     } else {
-        return dn_sampler_filter_coefficients;
+        return (const int32_t *) dn_sampler_filter_coefficients;
     }
 
 }