Move variance functions to vpx_dsp

subpel functions will be moved in another patch.

Change-Id: Idb2e049bad0b9b32ac42cc7731cd6903de2826ce

vp8/encoder/encodeintra.c

@@ -11,6 +11,7 @@
 
 #include "vpx_config.h"
 #include "vp8_rtcd.h"
+#include "./vpx_dsp_rtcd.h"
 #include "quantize.h"
 #include "vp8/common/reconintra4x4.h"
 #include "encodemb.h"
@@ -44,7 +45,7 @@ int vp8_encode_intra(VP8_COMP *cpi, MACROBLOCK *x, int use_dc_pred)
         }
     }
 
-    intra_pred_var = vp8_get_mb_ss(x->src_diff);
+    intra_pred_var = vpx_get_mb_ss(x->src_diff);
 
     return intra_pred_var;
 }