x86/motion_est: enable sad16_sse2 on k10 CPUs

The check is meant for k8 CPUs. sad16_sse2 is ~20% faster than sad16_mmxext on k10.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/x86/motion_est.c

@@ -481,7 +481,7 @@ av_cold void ff_dsputil_init_pix_mmx(DSPContext *c, AVCodecContext *avctx)
             c->pix_abs[1][3] = sad8_xy2_mmxext;
         }
     }
-    if (INLINE_SSE2(cpu_flags) && !(cpu_flags & AV_CPU_FLAG_3DNOW) && avctx->codec_id != AV_CODEC_ID_SNOW) {
+    if (INLINE_SSE2(cpu_flags) && !(cpu_flags & AV_CPU_FLAG_SSE2SLOW) && avctx->codec_id != AV_CODEC_ID_SNOW) {
         c->sad[0] = sad16_sse2;
     }
 #endif /* HAVE_INLINE_ASM */