x86/gpu: add RKL stolen memory support

RKL re-uses the same stolen memory registers as TGL and ICL.

Bspec: 52055
Bspec: 49589
Bspec: 49636
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200504225227.464666-3-matthew.d.roper@intel.com

arch/x86/kernel/early-quirks.c

@@ -550,6 +550,7 @@ static const struct pci_device_id intel_early_ids[] __initconst = {
 	INTEL_ICL_11_IDS(&gen11_early_ops),
 	INTEL_EHL_IDS(&gen11_early_ops),
 	INTEL_TGL_12_IDS(&gen11_early_ops),
+	INTEL_RKL_IDS(&gen11_early_ops),
 };
 
 struct resource intel_graphics_stolen_res __ro_after_init = DEFINE_RES_MEM(0, 0);