vga: Fix Kconfig indentation

Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
	$ sed -e 's/^        /\t/' -i */Kconfig
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191120133327.6519-1-krzk@kernel.org

drivers/gpu/vga/Kconfig

@@ -28,6 +28,6 @@ config VGA_SWITCHEROO
 	help
 	  Many laptops released in 2008/9/10 have two GPUs with a multiplexer
 	  to switch between them. This adds support for dynamic switching when
-          X isn't running and delayed switching until the next logoff. This
+	  X isn't running and delayed switching until the next logoff. This
 	  feature is called hybrid graphics, ATI PowerXpress, and Nvidia
 	  HybridPower.