Apply the permutation map on each affine nest

When using -test-loop-permutation="permutation-map=...", applies the
permutation map on each affine nest in the function (and not only the
first one). If the size of the permutation map and the size of a nest
are not consistent, do nothing on this particular nest (instead of
making MLIR crash).

Differential Revision: https://reviews.llvm.org/D112947