Fix Coverity Scan CID 261519 (Using uninitialized value tmp. Field tmp.elems...

Fix Coverity Scan CID 261519 (Using uninitialized value tmp. Field tmp.elems is uninitialized when calling _mm256_insert_epi16.)

openair1/PHY/CODING/3gpplte_turbo_decoder_avx2_16bit.c

@@ -933,7 +933,7 @@ unsigned char phy_threegpplte_turbo_decoder16avx2(int16_t *y,
   uint32_t db;
 
 
-  __m256i tmp, zeros=_mm256_setzero_si256();
+  __m256i tmp=_mm256_setzero_si256(), zeros=_mm256_setzero_si256();
 
 
   int offset8_flag=0;