[Intel-gfx] [PATCH i-g-t] tests/pm_rc6_residency: Add subtest to check RC6 suspend handling

[Szwichtenberg, Radoslaw]

On Mon, 2017-04-24 at 14:55 +0200, Ewelina Musial wrote:
> In some cases we observed that forcewake isn't kept after
> resume and then RC6 residency is not constant.
> 
> References: HSD#1804921797
> Cc: Arkadiusz Hiler <arkadiusz.hiler at intel.com>
> Cc: Michal Winiarski <michal.winiarski at intel.com>
> Cc: Lukasz Fiedorowicz <lukasz.fiedorowicz at intel.com>
> Signed-off-by: Ewelina Musial <ewelina.musial at intel.com>
Reviewed-by: Radoslaw Szwichtenberg <radoslaw.szwichtenberg at intel.com>