mtd: host compilation needs host-zlib

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/mtd/mtd.mk

@@ -10,7 +10,7 @@ ifeq ($(BR2_PACKAGE_MTD_MKFSJFFS2),y)
 MTD_DEPENDENCIES = zlib lzo
 endif
 
-HOST_MTD_DEPENDENCIES = host-lzo host-e2fsprogs
+HOST_MTD_DEPENDENCIES = host-zlib host-lzo host-e2fsprogs
 
 define HOST_MTD_BUILD_CMDS
 	CC="$(HOSTCC)" CFLAGS="$(HOST_CFLAGS)" LDFLAGS="$(HOST_LDFLAGS)" \