[llvm] [offload] Add olLaunchKernelWithPtrArgs with an argument pointer array (PR #194333)

[Kevin Sala Penades via llvm-commits]

kevinsala wrote:

@pbalcer Is there any reason to exclude the number of arguments (i.e., number of elements in ArgPtrs and ArgSizes) from `olLaunchKernel`?

https://github.com/llvm/llvm-project/pull/194333