[COFF] Add more missing MSVC ARM64 intrinsics
Summary:
Added the following intrinsics:
_BitScanForward, _BitScanReverse, _BitScanForward64, _BitScanReverse64
_InterlockedAnd64, _InterlockedDecrement64, _InterlockedExchange64,
_InterlockedExchangeAdd64, _InterlockedExchangeSub64,
_InterlockedIncrement64, _InterlockedOr64, _InterlockedXor64.
Reviewers: compnerd, mstorsjo, rnk, javed.absar
Reviewed By: mstorsjo
Subscribers: kristof.beyls, chrib, llvm-commits
Differential Revision: https://reviews.llvm.org/D49445
llvm-svn: 337327