Reapply "python3Packages.pillow & python3Packages.pillow-simd: Fix cross compilation""
This reverts commit 68eb95705fac46c95832e84e4947a74db304bb33, reversing
changes made to 347a238ef8b00f6134315b5b441877bba56db344.
Moving the big rebuild to staging; original PR #249136, revert #251367