dm zoned: select CONFIG_CRC32

Without crc32 support, this driver fails to link:

arm-linux-gnueabi-ld: drivers/md/dm-zoned-metadata.o: in function `dmz_write_sb':
dm-zoned-metadata.c:(.text+0xe98): undefined reference to `crc32_le'
arm-linux-gnueabi-ld: drivers/md/dm-zoned-metadata.o: in function `dmz_check_sb':
dm-zoned-metadata.c:(.text+0x7978): undefined reference to `crc32_le'

Fixes: 3b1a94c8 ("dm zoned: drive-managed zoned block device target")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

drivers/md/Kconfig

@@ -623,6 +623,7 @@ config DM_ZONED
 	tristate "Drive-managed zoned block device target support"
 	depends on BLK_DEV_DM
 	depends on BLK_DEV_ZONED
+	select CRC32
 	help
 	  This device-mapper target takes a host-managed or host-aware zoned
 	  block device and exposes most of its capacity as a regular block