amrwbdec_mips: Add missing ff_ prefix

libavcodec/mips/amrwbdec_mips.c

@@ -54,7 +54,7 @@
 #include "amrwbdec_mips.h"
 
 #if HAVE_INLINE_ASM
-void hb_fir_filter_mips(float *out, const float fir_coef[HB_FIR_SIZE + 1],
+void ff_hb_fir_filter_mips(float *out, const float fir_coef[HB_FIR_SIZE + 1],
                           float mem[HB_FIR_SIZE], const float *in)
 {
     int i;

libavcodec/mips/amrwbdec_mips.h

@@ -54,9 +54,9 @@
 #include "config.h"
 
 #if HAVE_MIPSFPU && HAVE_INLINE_ASM
-void hb_fir_filter_mips(float *out, const float fir_coef[],
+void ff_hb_fir_filter_mips(float *out, const float fir_coef[],
                           float mem[], const float *in);
-#define hb_fir_filter hb_fir_filter_mips
+#define hb_fir_filter ff_hb_fir_filter_mips
 #endif
 
 #endif /* AVCODEC_AMRWBDEC_MIPS_H  */