ltq-atm/ltq-ptm: avoid unnecessary build dependencies

Right now, both ltq-adsl-mei and ltq-vdsl-mei are always built, even
when they aren't necessary for the selected variant. This can cause the
build to fail, for example ltq-vdsl-mei doesn't build successfully here
on xway target due to the vectoring callback.

Make these dependencies conditional on the specific package variants,
so they are only built when actually needed.

Signed-off-by: Jan Hoffmann <jan@3e8.eu>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

package/kernel/lantiq/ltq-atm/Makefile

@@ -22,13 +22,18 @@ define KernelPackage/ltq-atm-template
   URL:=http://www.lantiq.com/
   VARIANT:=$(1)
   DEPENDS:=@$(2) +kmod-atm +br2684ctl
+ifeq ($(1),vr9)
+  DEPENDS+= +PACKAGE_kmod-ltq-atm-$(1):kmod-ltq-vdsl-vr9-mei
+else
+  DEPENDS+= +PACKAGE_kmod-ltq-atm-$(1):kmod-ltq-adsl-$(1)-mei
+endif
   FILES:=$(PKG_BUILD_DIR)/ltq_atm_$(1).ko
 endef
 
-KernelPackage/ltq-atm-danube=$(call KernelPackage/ltq-atm-template,danube,(TARGET_lantiq_xway||TARGET_lantiq_xway_legacy) +kmod-ltq-adsl-danube-mei)
-KernelPackage/ltq-atm-ar9=$(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 +kmod-ltq-vdsl-vr9-mei)
+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-ase=$(call KernelPackage/ltq-atm-template,ase,TARGET_lantiq_ase)
+KernelPackage/ltq-atm-vr9=$(call KernelPackage/ltq-atm-template,vr9,TARGET_lantiq_xrx200)
 
 define Build/Configure
 endef

package/kernel/lantiq/ltq-ptm/Makefile

@@ -24,9 +24,9 @@ define KernelPackage/ltq-ptm-template
   VARIANT:=$(1)
   DEPENDS:=@TARGET_lantiq_$(2)
 ifeq ($(1),vr9)
-  DEPENDS+= +kmod-ltq-vdsl-vr9-mei
+  DEPENDS+= +PACKAGE_kmod-ltq-ptm-$(1):kmod-ltq-vdsl-vr9-mei
 else
-  DEPENDS+= +kmod-ltq-adsl-$(1)-mei
+  DEPENDS+= +PACKAGE_kmod-ltq-ptm-$(1):kmod-ltq-adsl-$(1)-mei
 endif
 ifeq ($(1),ase)
   DEPENDS+=@BROKEN