require EXPORT_SYMBOL_GPL symbols for symbol_get v2

[Luis Chamberlain]

On Tue, Aug 01, 2023 at 07:35:39PM +0200, Christoph Hellwig wrote:
> Hi all,
> 
> this series changes symbol_get to only work on EXPORT_SYMBOL_GPL
> as nvidia is abusing the lack of this check to bypass restrictions
> on importing symbols from proprietary modules.

Reviewed-by: Luis Chamberlain <mcgrof at kernel.org>

Let me know if you want this to go through the modules tree or your own.

  Luis