Merge e8847d18 ("mm/hugetlb: unshare page tables during VMA split, not...

Merge e8847d18 ("mm/hugetlb: unshare page tables during VMA split, not before") into android12-5.10-lts

Steps on the way to 5.10.239

Resolves merge conflicts in:
	include/linux/hugetlb.h
	mm/hugetlb.c

Change-Id: I7e00df7ef9e81680637d61a1d9dda6d6f46e72af
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>