[2.7] bpo-31343: Include sys/sysmacros.h (GH-3318) by tiran · Pull Request #3345 · python/cpython

Include sys/sysmacros.h for major(), minor(), and makedev(). GNU C libray
plans to remove the functions from sys/types.h.

Signed-off-by: Christian Heimes <christian@python.org>.
(cherry picked from commit 75b9618)