vga_switcheroo: disable default y by new rules.

Another undocumented rule of kernel folklore, no default y
config options anymore, apparantly hinting to distros they might
want something isn't preferred anymore.

Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/vga/Kconfig b/drivers/gpu/vga/Kconfig
index 6116a01..34b08a6 100644
--- a/drivers/gpu/vga/Kconfig
+++ b/drivers/gpu/vga/Kconfig
@@ -11,7 +11,6 @@
 
 config VGA_SWITCHEROO
 	bool "Laptop Hybrid Grapics - GPU switching support"
-	default y
 	depends on X86
 	depends on ACPI
 	help