dsputil: x86: Correct the number of registers used in put_no_rnd_pixels16_l2

put_no_rnd_pixels16_l2 allocated 5 instead of 6 registers.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

libavcodec/x86/mpeg4qpel.asm

@@ -99,7 +99,7 @@ PUT_NO_RND_PIXELS8_L2
 
 ; put_no_rnd_pixels16_l2(uint8_t *dst, uint8_t *src1, uint8_t *src2, int dstStride, int src1Stride, int h)
 %macro PUT_NO_RND_PIXELS16_l2 0
-cglobal put_no_rnd_pixels16_l2, 5,5
+cglobal put_no_rnd_pixels16_l2, 6,6
     movsxdifnidn r3, r3
     movsxdifnidn r4, r4d
     pcmpeqb      m6, m6