hugetlbfs: use pagevec_lookup_range() in remove_inode_hugepages()

We want only pages from given range in remove_inode_hugepages().  Use
pagevec_lookup_range() instead of pagevec_lookup().

Link: http://lkml.kernel.org/r/20170726114704.7626-8-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Nadia Yvette Chambers <nyc@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>