mm: fix typo in __vm_enough_memory warning

Link: https://lkml.kernel.org/r/20230210203316.5613-1-jwilk@jwilk.net


Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>