hugetlbfs: fix build failure with !CONFIG_HUGETLBFS

hugetlbfs: fix build failure with !CONFIG_HUGETLBFS

Fix regression due to 7accb921aa9f9e02510e5e3e78fd4aa85a398987,
"Do not account for the address space used by hugetlbfs using VM_ACCOUNT"
which added an argument to the function hugetlb_file_setup() but not to
the macro hugetlb_file_setup().

Reported-by: Chris Clayton <chris2553@googlemail.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>