[avx512] rename gcc intrinsics to be align with gcc format
rename the gcc intrinsics suffix : _mask ->_round

Differential Revision: http://reviews.llvm.org/D15285



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254905 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed