[maintainer-tools] update_git_source_package: override CONFIG_SRC_TREE_OVERRIDE

[LEDE Commits]

nbd pushed a commit to maintainer-tools.git, branch master:
https://git.openwrt.org/8e0e99b5e1311db196a8f6a8df4bbb767f9425c5

commit 8e0e99b5e1311db196a8f6a8df4bbb767f9425c5
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Tue Nov 21 22:15:26 2023 +0100

    update_git_source_package: override CONFIG_SRC_TREE_OVERRIDE
    
    Fixes download when git-src is present and CONFIG_SRC_TREE_OVERRIDE is set
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 update_git_source_package.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/update_git_source_package.sh b/update_git_source_package.sh
index 7a3e137..a6b1c51 100755
--- a/update_git_source_package.sh
+++ b/update_git_source_package.sh
@@ -192,7 +192,7 @@ eval $(
 		var.PKG_SOURCE
 )
 
-"$MAKE" -C "$(dirname "$MAKEFILE")" download || {
+"$MAKE" -C "$(dirname "$MAKEFILE")" download CONFIG_SRC_TREE_OVERRIDE= || {
 	echo "Unable to download and pack updated Git sources." >&2
 	exit 1
 }