dm: fix DAX dependency

drivers/md/dm.o: In function `dm_put_table_device':
dm.c:(.text+0x33c): undefined reference to `put_dax'
drivers/md/dm.o: In function `cleanup_mapped_device':
dm.c:(.text+0x1054): undefined reference to `kill_dax'
dm.c:(.text+0x105c): undefined reference to `put_dax'
drivers/md/dm.o: In function `dm_get_table_device':
dm.c:(.text+0x2744): undefined reference to `dax_get_by_host'
drivers/md/dm-table.o: In function `device_dax_write_cache_enabled':
dm-table.c:(.text+0x1030): undefined reference to `dax_write_cache_enabled'
drivers/md/dm-table.o: In function `dm_table_set_restrictions':
dm-table.c:(.text+0x29b8): undefined reference to `dax_write_cache'

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
1 file changed