Remove incorrect reinterpret_cast from const.

webrtc/modules/audio_processing/aec/aec_core_mips.cc

Index: webrtc/modules/audio_processing/aec/aec_core_mips.cc
diff --git a/webrtc/modules/audio_processing/aec/aec_core_mips.cc b/webrtc/modules/audio_processing/aec/aec_core_mips.cc
index 61111e4e195a10cc5004f5b5e62aedec2d83c03d..bd4d8c58418bff9f7e65045b19ce919e0cd2a967 100644
--- a/webrtc/modules/audio_processing/aec/aec_core_mips.cc
+++ b/webrtc/modules/audio_processing/aec/aec_core_mips.cc
@@ -651,13 +651,13 @@ void WebRtcAec_OverdriveAndSuppress_mips(AecCore* aec,
   float* p_hNl;
   float* p_efw0;
   float* p_efw1;
-  float* p_WebRtcAec_wC;
+  const float* p_WebRtcAec_wC;
   float temp1, temp2, temp3, temp4;
 
   p_hNl = &hNl[0];
   p_efw0 = &efw[0][0];
   p_efw1 = &efw[1][0];
-  p_WebRtcAec_wC = reinterpret_cast<float*>(&WebRtcAec_weightCurve[0]);
+  p_WebRtcAec_wC = &WebRtcAec_weightCurve[0];
 
   for (i = 0; i < PART_LEN1; i++) {
     // Weight subbands