drm/i915: Move HAS_GMBUS_IRQ definition to platform definition

Moving all GPU features to the platform struct definition allows for
	- standard place when adding new features from new platforms
	- possible to see supported features when dumping struct
	  definitions

Signed-off-by: Carlos Santa <carlos.santa@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 60cfc78..616de269d 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -181,6 +181,7 @@
 #define GEN5_FEATURES \
 	.gen = 5, .num_pipes = 2, \
 	.need_gfx_hws = 1, .has_hotplug = 1, \
+	.has_gmbus_irq = 1, \
 	.ring_mask = RENDER_RING | BSD_RING, \
 	GEN_DEFAULT_PIPEOFFSETS, \
 	CURSOR_OFFSETS
@@ -202,6 +203,7 @@
 	.has_llc = 1, \
 	.has_rc6 = 1, \
 	.has_rc6p = 1, \
+	.has_gmbus_irq = 1, \
 	GEN_DEFAULT_PIPEOFFSETS, \
 	CURSOR_OFFSETS
 
@@ -222,6 +224,7 @@
 	.has_llc = 1, \
 	.has_rc6 = 1, \
 	.has_rc6p = 1, \
+	.has_gmbus_irq = 1, \
 	GEN_DEFAULT_PIPEOFFSETS, \
 	IVB_CURSOR_OFFSETS
 
@@ -247,6 +250,7 @@
 	.has_psr = 1, \
 	.has_runtime_pm = 1, \
 	.has_rc6 = 1, \
+	.has_gmbus_irq = 1, \
 	.need_gfx_hws = 1, .has_hotplug = 1, \
 	.ring_mask = RENDER_RING | BSD_RING | BLT_RING, \
 	.display_mmio_offset = VLV_DISPLAY_BASE, \
@@ -300,6 +304,7 @@
 	.has_runtime_pm = 1,
 	.has_resource_streamer = 1,
 	.has_rc6 = 1,
+	.has_gmbus_irq = 1,
 	.display_mmio_offset = VLV_DISPLAY_BASE,
 	GEN_CHV_PIPEOFFSETS,
 	CURSOR_OFFSETS,
@@ -336,6 +341,7 @@
 	.has_resource_streamer = 1,
 	.has_rc6 = 1,
 	.has_dp_mst = 1,
+	.has_gmbus_irq = 1,
 	GEN_DEFAULT_PIPEOFFSETS,
 	IVB_CURSOR_OFFSETS,
 	BDW_COLORS,