lantiq: enable second VPE on Fritz!Box 7412

The AVM Fritz!Box 7412 does not use the VMMC part of the Lantiq chip but
rather a proprietary solution based on the DECT chip for the FXS ports.

Therefore, the second VPE can be enabled for use with OpenWrt.

Signed-off-by: David Bauer <mail@david-bauer.net>
(cherry picked from commit 891a700759)

target/linux/lantiq/files-4.14/arch/mips/boot/dts/FRITZ7412.dts

@@ -11,7 +11,7 @@
 	model = "AVM FRITZ!Box 7412";
 
 	chosen {
-		bootargs = "console=ttyLTQ0,115200 mem=126M vpe1_load_addr=0x87e00000 vpe1_mem=2M maxvpes=1 maxtcs=1 nosmp";
+		bootargs = "console=ttyLTQ0,115200";
 	};
 
 	aliases {

target/linux/lantiq/image/Makefile

@@ -673,7 +673,7 @@ define Device/avm_fritz7412
   KERNEL_SIZE := 4096k
   IMAGE_SIZE := 49152k
   DEVICE_TITLE := AVM FRITZ!Box 7412
-  DEVICE_PACKAGES := kmod-ath9k kmod-owl-loader wpad-basic kmod-ltq-tapi kmod-ltq-vmmc fritz-tffs-nand fritz-caldata
+  DEVICE_PACKAGES := kmod-ath9k kmod-owl-loader wpad-basic fritz-tffs-nand fritz-caldata
 endef
 TARGET_DEVICES += avm_fritz7412