[x265] fix typo

[Satoshi Nakagawa]

# HG changeset patch
# User Satoshi Nakagawa <nakagawa424 at oki.com>
# Date 1415494975 -32400
#      Sun Nov 09 10:02:55 2014 +0900
# Node ID cbe34d7fef367ad9603513fdae34dfee99d9a03d
# Parent  3f2d6836855411597ef25b4f9786dcaa0fe7394a
fix typo

diff -r 3f2d68368554 -r cbe34d7fef36 source/encoder/analysis.cpp
--- a/source/encoder/analysis.cpp	Sat Nov 08 12:30:10 2014 -0600
+++ b/source/encoder/analysis.cpp	Sun Nov 09 10:02:55 2014 +0900
@@ -794,7 +794,7 @@
 
             if (m_param->bEnableRectInter)
             {
-                md.pred[PRED_2NxN].cu.initSubCU(parentCTU, cuGeom);
+                md.pred[PRED_Nx2N].cu.initSubCU(parentCTU, cuGeom);
                 checkInter_rd0_4(md.pred[PRED_Nx2N], cuGeom, SIZE_Nx2N);
                 if (md.pred[PRED_Nx2N].sa8dCost < bestInter->sa8dCost)
                     bestInter = &md.pred[PRED_Nx2N];