child_process, win: fix shell spawn with AutoRun

Under Windows system can be configured to execute a specific command
each time a shell is spawned. Under some conditions this breaks the
way node handles shell scripts under windows.
This commit adds /d switch to spawn and spawnSync which disables this
AutoRun functionality.

Fixes: https://github.com/nodejs/node-v0.x-archive/issues/25458
PR-URL: https://github.com/nodejs/node/pull/8063


Reviewed-By: João Reis <reis@janeasystems.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Josh Gavant <josh.gavant@outlook.com>
Reviewed-By: Rod Vagg <rod@vagg.org>