add taking screenshot

Signed-off-by: dw035535 <diane.wang@broadcom.com>

Author: Tomorrow9

windows/guest_customization/win_gosc_verify.yml

@@ -36,3 +36,9 @@
         fail_msg: >
           Failed to get process 'explorer.exe' status in guest OS after GOSC,
           black screen issue may happen, please check the screenshot or log files in the current test case log folder.
+
+- name: "Take a screenshot after GOSC"
+  include_tasks: ../../common/vm_take_screenshot.yml
+  vars:
+    vm_screenshot_local_dir: "{{ current_test_log_folder }}"
+    vm_screenshot_local_name: "screenshot_after_gosc.png"