ltq-atm: add missing dependency to kmod-ltq-adsl-*-mei

Commit 2e496876c6 fixed the generation of the depends line for external
kernel modules which makes it possible for the build system to
automatically detect this missing dependency.

This fixes the packaging of kmod-ltq-atm for the ar9, xway and
xway-legacy subtarget.

Fixes: FS#1124

Signed-off-by: Mathias Kresin <dev@kresin.me>

package/kernel/lantiq/ltq-atm/Makefile

@@ -26,8 +26,8 @@ define KernelPackage/ltq-atm-template
   FILES:=$(PKG_BUILD_DIR)/ltq_atm_$(1).ko
 endef
 
-KernelPackage/ltq-atm-danube=$(call KernelPackage/ltq-atm-template,danube,(TARGET_lantiq_xway||TARGET_lantiq_xway_legacy))
-KernelPackage/ltq-atm-ar9=$(call KernelPackage/ltq-atm-template,ar9,TARGET_lantiq_xway)
+KernelPackage/ltq-atm-danube=$(call KernelPackage/ltq-atm-template,danube,(TARGET_lantiq_xway||TARGET_lantiq_xway_legacy) +kmod-ltq-adsl-danube-mei)
+KernelPackage/ltq-atm-ar9=$(call KernelPackage/ltq-atm-template,ar9,TARGET_lantiq_xway +kmod-ltq-adsl-ar9-mei)
 KernelPackage/ltq-atm-ase=$(call KernelPackage/ltq-atm-template,ase,TARGET_lantiq_ase +kmod-ltq-adsl-ase-mei)
 KernelPackage/ltq-atm-vr9=$(call KernelPackage/ltq-atm-template,vr9,TARGET_lantiq_xrx200)