kernel: Use kmod-dax on kernel 4.19

Like on kernel 4.14 kmod-dax is needed by kmod-dm also in kernel 4.19.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

package/kernel/linux/modules/block.mk

@@ -209,7 +209,7 @@ $(eval $(call KernelPackage,block2mtd))
 define KernelPackage/dax
   SUBMENU:=$(BLOCK_MENU)
   TITLE:=DAX: direct access to differentiated memory
-  DEPENDS:=@LINUX_4_14
+  DEPENDS:=@!LINUX_3_18 @!LINUX_4_9
   KCONFIG:=CONFIG_DAX
   FILES:=$(LINUX_DIR)/drivers/dax/dax.ko
 endef
@@ -220,7 +220,7 @@ $(eval $(call KernelPackage,dax))
 define KernelPackage/dm
   SUBMENU:=$(BLOCK_MENU)
   TITLE:=Device Mapper
-  DEPENDS:=+kmod-crypto-manager +LINUX_4_14:kmod-dax
+  DEPENDS:=+kmod-crypto-manager +!(LINUX_3_18||LINUX_4_9):kmod-dax
   # All the "=n" are unnecessary, they're only there
   # to stop the config from asking the question.
   # MIRROR is M because I've needed it for pvmove.