Philox AVX512: fix shuffle mask

pystencils/include/philox_rand.h

@@ -436,10 +436,10 @@ QUALIFIERS void _philox4x32round(__m512i* ctr, __m512i* key)
     __m512i lohi1a = _mm512_mul_epu32(ctr[2], _mm512_set1_epi32(PHILOX_M4x32_1));
     __m512i lohi1b = _mm512_mul_epu32(_mm512_srli_epi64(ctr[2], 32), _mm512_set1_epi32(PHILOX_M4x32_1));
 
-    lohi0a = _mm512_shuffle_epi32(lohi0a, 0xD8);
-    lohi0b = _mm512_shuffle_epi32(lohi0b, 0xD8);
-    lohi1a = _mm512_shuffle_epi32(lohi1a, 0xD8);
-    lohi1b = _mm512_shuffle_epi32(lohi1b, 0xD8);
+    lohi0a = _mm512_shuffle_epi32(lohi0a, _MM_PERM_DBCA);
+    lohi0b = _mm512_shuffle_epi32(lohi0b, _MM_PERM_DBCA);
+    lohi1a = _mm512_shuffle_epi32(lohi1a, _MM_PERM_DBCA);
+    lohi1b = _mm512_shuffle_epi32(lohi1b, _MM_PERM_DBCA);
 
     __m512i lo0 = _mm512_unpacklo_epi32(lohi0a, lohi0b);
     __m512i hi0 = _mm512_unpackhi_epi32(lohi0a, lohi0b);