ci: Make log verbose in error case only

This change silences depends build using LOG=1.

Author: hebasto

ci/test/05_before_script.sh

@@ -45,7 +45,7 @@ if [ -z "$NO_DEPENDS" ]; then
   else
     SHELL_OPTS="CONFIG_SHELL="
   fi
-  CI_EXEC "$SHELL_OPTS" make "$MAKEJOBS" -C depends HOST="$HOST" "$DEP_OPTS"
+  CI_EXEC "$SHELL_OPTS" make "$MAKEJOBS" -C depends HOST="$HOST" "$DEP_OPTS" LOG=1
 fi
 if [ -n "$PREVIOUS_RELEASES_TO_DOWNLOAD" ]; then
   CI_EXEC test/get_previous_releases.py -b -t "$PREVIOUS_RELEASES_DIR" "${PREVIOUS_RELEASES_TO_DOWNLOAD}"