Fix submodule reference.
Fix submodule reference.

Github, why in the world are you rewriting the commit hash on rebase and
merge when there's 0 need for that?

andrewcorrigan/thrust-multi-permutation-iterator,thrust/thrust,thrust/thrust,andrewcorrigan/thrust-multi-permutation-iterator,thrust/thrust,jaredhoberock/thrust,thrust/thrust,jaredhoberock/thrust,thrust/thrust,jaredhoberock/thrust,andrewcorrigan/thrust-multi-permutation-iterator,jaredhoberock/thrust,jaredhoberock/thrust