[x265] [PATCH] asm: 16bpp code for quant and dequant_normal

[chen]

>@@ -1154,8 +1151,11 @@
> ; void dequant_normal(const int32_t* quantCoef, int32_t* coef, int num, int scale, int shift)
> ;-----------------------------------------------------------------------------
> INIT_XMM sse4
>-cglobal dequant_normal, 2,5,8
>-    movd        m1, r3m             ; m1 = word [scale]
>+cglobal dequant_normal, 4,5,5
>+    movd        m1, r3             ; m1 = word [scale]
>+    cmp         r3d, 255
r3 is scale, it maximum is (72 << per), when QP more than 12, the code will enter slower path.
 
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