libvpx: Pull from upstream

source/config/linux/arm64/vp8_rtcd.h

 #ifndef VP8_RTCD_H_
 #define VP8_RTCD_H_
 
 #ifdef RTCD_C
 #define RTCD_EXTERN
 #else
 #define RTCD_EXTERN extern
 #endif
 
 #ifdef __cplusplus
@@ skipping 273 matching lines @@
 #define vp8_short_inv_walsh4x4_1 vp8_short_inv_walsh4x4_1_c
 
 void vp8_short_walsh4x4_c(short *input, short *output, int pitch);
 #define vp8_short_walsh4x4 vp8_short_walsh4x4_c
 
 void vp8_sixtap_predict16x16_c(unsigned char *src, int src_pitch, int xofst, int yofst, unsigned char *dst, int dst_pitch);
 void vp8_sixtap_predict16x16_neon(unsigned char *src, int src_pitch, int xofst, int yofst, unsigned char *dst, int dst_pitch);
 #define vp8_sixtap_predict16x16 vp8_sixtap_predict16x16_neon
 
 void vp8_sixtap_predict4x4_c(unsigned char *src, int src_pitch, int xofst, int yofst, unsigned char *dst, int dst_pitch);
-void vp8_sixtap_predict4x4_neon(unsigned char *src, int src_pitch, int xofst, int yofst, unsigned char *dst, int dst_pitch);
-#define vp8_sixtap_predict4x4 vp8_sixtap_predict4x4_neon
+#define vp8_sixtap_predict4x4 vp8_sixtap_predict4x4_c
 
 void vp8_sixtap_predict8x4_c(unsigned char *src, int src_pitch, int xofst, int yofst, unsigned char *dst, int dst_pitch);
 void vp8_sixtap_predict8x4_neon(unsigned char *src, int src_pitch, int xofst, int yofst, unsigned char *dst, int dst_pitch);
 #define vp8_sixtap_predict8x4 vp8_sixtap_predict8x4_neon
 
 void vp8_sixtap_predict8x8_c(unsigned char *src, int src_pitch, int xofst, int yofst, unsigned char *dst, int dst_pitch);
 void vp8_sixtap_predict8x8_neon(unsigned char *src, int src_pitch, int xofst, int yofst, unsigned char *dst, int dst_pitch);
 #define vp8_sixtap_predict8x8 vp8_sixtap_predict8x8_neon
 
 unsigned int vp8_sub_pixel_mse16x16_c(const unsigned char  *src_ptr, int  source_stride, int  xoffset, int  yoffset, const unsigned char *ref_ptr, int Refstride, unsigned int *sse);
@@ skipping 67 matching lines @@
     (void)flags;
 
 }
 #endif
 
 #ifdef __cplusplus
 }  // extern "C"
 #endif
 
 #endif