[source] uboot-envtools: add 'dockstar' for kirkwood

[LEDE Commits]

blogic pushed a commit to source.git, branch master:
https://git.lede-project.org/d6e8b1f841fe55ad51d22210981e0ffca5241886

commit d6e8b1f841fe55ad51d22210981e0ffca5241886
Author: Paul Wassi <p.wassi at gmx.at>
AuthorDate: Sat Nov 19 13:09:48 2016 +0100

    uboot-envtools: add 'dockstar' for kirkwood
    
    Add board 'dockstar' to known fw_env-configurations.
    
    Signed-off-by: Paul Wassi <p.wassi at gmx.at>
---
 package/boot/uboot-envtools/files/kirkwood | 1 +
 1 file changed, 1 insertion(+)

diff --git a/package/boot/uboot-envtools/files/kirkwood b/package/boot/uboot-envtools/files/kirkwood
index 35cbd84..b4a4d4e 100644
--- a/package/boot/uboot-envtools/files/kirkwood
+++ b/package/boot/uboot-envtools/files/kirkwood
@@ -14,6 +14,7 @@ touch /etc/config/ubootenv
 board=$(kirkwood_board_name)
 
 case "$board" in
+"dockstar" | \
 "guruplug-server-plus" | \
 "ib62x0" | \
 "linksys-viper" | \