[source] lantiq: fix console print for additional boards

[LEDE Commits]

hauke pushed a commit to source.git, branch master:
https://git.lede-project.org/8f0dc92afde82ab0ce7b4ca7337837422e9e6201

commit 8f0dc92afde82ab0ce7b4ca7337837422e9e6201
Author: Hauke Mehrtens <hauke at hauke-m.de>
AuthorDate: Fri Jan 6 22:59:13 2017 +0100

    lantiq: fix console print for additional boards
    
    I missed 3 boards in this commit:
    commit d8dde8c5178eba8c847dd48e7d06e6663ba1979f
    Author: Hauke Mehrtens <hauke at hauke-m.de>
    Date:   Wed Jan 4 21:53:22 2017 +0100
    
        lantiq: fix console print
    
    Add bootargs parameters for ARV4525PW, ARV7506PW11 and ARV8539PW22
    again.
    
    Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
 target/linux/lantiq/dts/ARV4525PW.dts   | 4 ++++
 target/linux/lantiq/dts/ARV7506PW11.dts | 4 ++++
 target/linux/lantiq/dts/ARV8539PW22.dts | 4 ++++
 3 files changed, 12 insertions(+)

diff --git a/target/linux/lantiq/dts/ARV4525PW.dts b/target/linux/lantiq/dts/ARV4525PW.dts
index 605df42..64b45ae 100644
--- a/target/linux/lantiq/dts/ARV4525PW.dts
+++ b/target/linux/lantiq/dts/ARV4525PW.dts
@@ -7,6 +7,10 @@
 / {
 	model = "ARV4525PW - Speedport W501V Typ A";
 
+	chosen {
+		bootargs = "console=ttyLTQ0,115200";
+	};
+
 	aliases {
 		/* we dont have a power led, lets use the online led */
 		led-boot = &online;
diff --git a/target/linux/lantiq/dts/ARV7506PW11.dts b/target/linux/lantiq/dts/ARV7506PW11.dts
index ef3ff30..1a57d64 100644
--- a/target/linux/lantiq/dts/ARV7506PW11.dts
+++ b/target/linux/lantiq/dts/ARV7506PW11.dts
@@ -7,6 +7,10 @@
 / {
 	model = "ARV7506PW11 - Alice/O2 IAD 4421";
 
+	chosen {
+		bootargs = "console=ttyLTQ0,115200";
+	};
+
 	aliases {
 		led-boot = &power;
 		led-failsafe = &power_red;
diff --git a/target/linux/lantiq/dts/ARV8539PW22.dts b/target/linux/lantiq/dts/ARV8539PW22.dts
index 2b82a32..c55c9a6 100644
--- a/target/linux/lantiq/dts/ARV8539PW22.dts
+++ b/target/linux/lantiq/dts/ARV8539PW22.dts
@@ -7,6 +7,10 @@
 / {
 	model = "ARV8539PW22 - Speedport W 504V Typ A";
 
+	chosen {
+		bootargs = "console=ttyLTQ0,115200";
+	};
+
 	aliases {
 		led-boot = &power_green;
 		led-failsafe = &power_red;