drm/exynos: gsc: fix wrong pm_runtime state

At probe time, gsc clock is not enabled, so pm_runtime state should
be deactive. So this patch removes pm_runtime_set_active() from
gsc_probe().

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

drivers/gpu/drm/exynos/exynos_drm_gsc.c

@@ -1713,7 +1713,6 @@ static int gsc_probe(struct platform_device *pdev)
 	mutex_init(&ctx->lock);
 	platform_set_drvdata(pdev, ctx);
 
-	pm_runtime_set_active(dev);
 	pm_runtime_enable(dev);
 
 	ret = exynos_drm_ippdrv_register(ippdrv);