mm: remove the second argument of k[un]map_atomic()

Signed-off-by: Cong Wang <amwang@redhat.com>

diff --cc mm/bounce.c
Simple merge

diff --cc mm/filemap.c
Simple merge

diff --cc mm/ksm.c
Simple merge

diff --cc mm/memory.c
Simple merge

diff --cc mm/shmem.c
Simple merge

diff --cc mm/swapfile.c
Simple merge

diff --cc mm/vmalloc.c
Simple merge