openharmony-standard: Fix teardown.sh check in run-ptest

Signed-off-by: Thierry Escande <thierry.escande@huawei.com>

recipes-openharmony/openharmony/files/run-ptest

@@ -54,7 +54,7 @@ for ts in unittest moduletest systemtest ; do
 done
 
 # Component level test fixture teardown
-if [ -f setup.sh ]; then
+if [ -f teardown.sh ]; then
     source teardown.sh
 fi