drm/i915: move a Kconfig symbol to unbreak the menu presentation

Inserting a Kconfig symbol that does not have a dependency (DRM_I915_GVT)
into a list of other symbols that do have a dependency (on DRM_I915)
breaks the driver menu presentation in 'make *config'.

Relocate the DRM_I915_GVT symbol so that it does not cause this
problem.

Fixes: 8b750bf ("drm/i915/gvt: move the gvt code into kvmgt.ko")
Signed-off-by: Randy Dunlap <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Zhi Wang <[email protected]>
Cc: Jani Nikula <[email protected]>
Cc: Joonas Lahtinen <[email protected]>
Cc: Rodrigo Vivi <[email protected]>
Cc: Tvrtko Ursulin <[email protected]>
Cc: Zhenyu Wang <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Reviewed-by: Christoph Hellwig <[email protected]>
Acked-by: Zhenyu Wang <[email protected]>
Signed-off-by: Zhenyu Wang <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]

Author: rddunlap

drivers/gpu/drm/i915/Kconfig

@@ -118,9 +118,6 @@ config DRM_I915_USERPTR
 
 	  If in doubt, say "Y".
 
-config DRM_I915_GVT
-	bool
-
 config DRM_I915_GVT_KVMGT
 	tristate "Enable KVM host support Intel GVT-g graphics virtualization"
 	depends on DRM_I915
@@ -171,3 +168,6 @@ menu "drm/i915 Unstable Evolution"
 	depends on DRM_I915
 	source "drivers/gpu/drm/i915/Kconfig.unstable"
 endmenu
+
+config DRM_I915_GVT
+	bool