Remove unused warnings from speex

Change-Id: I01958b7246707de22f3f0e3d16b0ae0a893db495
diff --git a/Android.mk b/Android.mk
index 0e5c77e..22d8cf4 100644
--- a/Android.mk
+++ b/Android.mk
@@ -30,8 +30,9 @@
 
 
 
-LOCAL_CFLAGS+= -DEXPORT= -DFLOATING_POINT -DUSE_SMALLFT -DVAR_ARRAYS
-LOCAL_CFLAGS+= -O3 -fstrict-aliasing -fprefetch-loop-arrays
+LOCAL_CFLAGS += -DEXPORT= -DFLOATING_POINT -DUSE_SMALLFT -DVAR_ARRAYS
+LOCAL_CFLAGS += -O3 -fstrict-aliasing -fprefetch-loop-arrays
+LOCAL_CFLAGS += -Wno-unused-parameter
 
 LOCAL_C_INCLUDES += \
 	$(LOCAL_PATH)/include