[openwrt/openwrt] ipq806x: Correct OnHub sysupgrade config logic

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/7b78a19e6a16f5c05bfc6d7925b9981048c508d7

commit 7b78a19e6a16f5c05bfc6d7925b9981048c508d7
Author: Brian Norris <computersforpeace at gmail.com>
AuthorDate: Sun Sep 10 14:10:50 2023 -0700

    ipq806x: Correct OnHub sysupgrade config logic
    
    There's a typo in here: board_name is a function, not a variable. This
    issue was pointed out on the OpenWrt forum.
    
    Closes: #13409
    
    Reviewed-by: Robert Marko <robimarko at gmail.com>
    Signed-off-by: Brian Norris <computersforpeace at gmail.com>
---
 target/linux/ipq806x/base-files/lib/upgrade/platform.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/linux/ipq806x/base-files/lib/upgrade/platform.sh b/target/linux/ipq806x/base-files/lib/upgrade/platform.sh
index 108b0b7630..8eda75b718 100644
--- a/target/linux/ipq806x/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ipq806x/base-files/lib/upgrade/platform.sh
@@ -82,7 +82,7 @@ platform_do_upgrade() {
 }
 
 platform_copy_config() {
-	case "${board_name}" in
+	case "$(board_name)" in
 	asus,onhub |\
 	tplink,onhub)
 		emmc_copy_config