drm/i915/gvt: only include intel_gvt.h where needed

i915_drv.c is the only caller.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200227144408.24345-3-jani.nikula@intel.com

drivers/gpu/drm/i915/i915_drv.c

@@ -81,6 +81,7 @@
 #include "i915_trace.h"
 #include "i915_vgpu.h"
 #include "intel_dram.h"
+#include "intel_gvt.h"
 #include "intel_memory_region.h"
 #include "intel_pm.h"
 #include "vlv_suspend.h"

drivers/gpu/drm/i915/i915_drv.h

@@ -104,8 +104,6 @@
 
 #include "intel_region_lmem.h"
 
-#include "intel_gvt.h"
-
 /* General customization:
  */