lantiq: add /lib/lantiq.sh and make hotplug handlers use it

SVN-Revision: 29003

target/linux/lantiq/base-files/lib/lantiq.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+lantiq_soc_name() {
+	grep ^system /proc/cpuinfo | sed "s/system type.*: \(.*\)/\1/g"
+}
+
+lantiq_board_name() {
+	grep ^machine /proc/cpuinfo | sed "s/machine.*: \(.*\)/\1/g" | sed "s/\(.*\) - .*/\1/g"
+}