make openlane scripts executable

openlane.sh

diff --git a/openlane.sh b/openlane.sh
index 2ef3fa2..de281ce 100755
--- a/openlane.sh
+++ b/openlane.sh
@@ -9,3 +9,4 @@
 cd docker_build
 make merge
 cd ../..
+chmod +x openlane_repo/scripts/*