octeon: get rid of /lib/functions/octeon.sh hackery, use sysinfo directly

Fixes sysupgrade

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48558

target/linux/octeon/base-files/lib/upgrade/platform.sh

@@ -2,8 +2,6 @@
 # Copyright (C) 2014 OpenWrt.org
 #
 
-. /lib/functions/octeon.sh
-
 platform_get_rootfs() {
 	local rootfsdev
 
@@ -24,7 +22,7 @@ platform_get_rootfs() {
 }
 
 platform_copy_config() {
-	local board="$(octeon_board_name)"
+	local board="$(cat /tmp/sysinfo/board_name)"
 
 	case "$board" in
 	erlite)
@@ -60,7 +58,7 @@ platform_do_flash() {
 
 platform_do_upgrade() {
 	local tar_file="$1"
-	local board=$(octeon_board_name)
+	local board=$(cat /tmp/sysinfo/board_name)
 	local rootfs="$(platform_get_rootfs)"
 	local kernel=
 
@@ -83,7 +81,7 @@ platform_do_upgrade() {
 }
 
 platform_check_image() {
-	local board=$(octeon_board_name)
+	local board=$(cat /tmp/sysinfo/board_name)
 
 	case "$board" in
 	erlite | \