[source] kirkwood: fix sysupgrade for non-dockstar NAND devices

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/83d59453c0eb561692298ee59423ba5798ee1887

commit 83d59453c0eb561692298ee59423ba5798ee1887
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Fri Dec 30 11:55:16 2016 +0100

    kirkwood: fix sysupgrade for non-dockstar NAND devices
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 target/linux/kirkwood/base-files/lib/upgrade/platform.sh | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/target/linux/kirkwood/base-files/lib/upgrade/platform.sh b/target/linux/kirkwood/base-files/lib/upgrade/platform.sh
index be5f101..e7c6a11 100644
--- a/target/linux/kirkwood/base-files/lib/upgrade/platform.sh
+++ b/target/linux/kirkwood/base-files/lib/upgrade/platform.sh
@@ -14,7 +14,7 @@ platform_check_image() {
 		}
 		return 0
 		;;
-	"dockstar")
+	*)
 		nand_do_platform_check $board $1
 		return $?
 		;;
@@ -32,6 +32,9 @@ platform_do_upgrade() {
 	"linksys-viper")
 		platform_do_upgrade_linksys "$ARGV"
 		;;
+	*)
+		default_do_upgrade "$@"
+		;;
 	esac
 }
 
@@ -39,7 +42,9 @@ platform_pre_upgrade() {
 	local board=$(kirkwood_board_name)
 
 	case "$board" in
-	"dockstar")
+	"linksys-audi"|\
+	"linksys-viper") ;;
+	*)
 		nand_do_upgrade $1
 		;;
 	esac