lantiq: generate /tmp/sysinfo/lantiq_board_name if missing

Run lantiq_board_detect from lantiq_board_name and lantiq_board_model.

This was the one thing missing from r41474 for sysupgrade board
detection to work properly.

Signed-off-by: Ben Mulvihill <ben.mulvihill@gmail.com>

SVN-Revision: 41567

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

@@ -13,6 +13,7 @@ lantiq_board_detect() {
 lantiq_board_model() {
 	local model
 
+	[ -f /tmp/sysinfo/model ] || lantiq_board_detect
 	[ -f /tmp/sysinfo/model ] && model=$(cat /tmp/sysinfo/model)
 	[ -z "$model" ] && model="unknown"
 
@@ -22,6 +23,7 @@ lantiq_board_model() {
 lantiq_board_name() {
 	local name
 
+	[ -f /tmp/sysinfo/board_name ] || lantiq_board_detect
 	[ -f /tmp/sysinfo/board_name ] && name=$(cat /tmp/sysinfo/board_name)
 	[ -z "$name" ] && name="unknown"