sfc_os: add SRSetRestorePointA/W stubs

[Alistair Leslie-Hughes]

Hi Austin,

On 04/04/16 10:24, Austin English wrote:
> For https://bugs.winehq.org/show_bug.cgi?id=40397 /
> https://bugs.winehq.org/show_bug.cgi?id=40410
> 
> 
> +BOOL WINAPI SRSetRestorePointA(RESTOREPOINTINFOA *restorepoint, STATEMGRSTATUS *status)
>...
> +    return 0;
> +}
> 
It would be better to return TRUE or FALSE for the BOOL type.

Best Regards
 Alistair