build: add common `defines`

* `V8_DEPRECATION_WARNINGS` is here for explicity. It is already defined
  in `node.gypi`, and `addon.gypi`.
* `V8_IMMINENT_DEPRECATION_WARNINGS` added to warn addons authors.
* `OPENSSL_THREADS` apears in the openSSL `.h` files, and was only
  defined via GYP for the node build.

PR-URL: https://github.com/nodejs/node/pull/23426
Fixes: https://github.com/nodejs/node/issues/23167
Refs: https://github.com/nodejs/node/issues/23122


Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>