build: use auto_features=disabled for libdrm subproject

Instead of individually disabling each driver, use
auto_features=disabled to disable all feature options by default.

meson.build

@@ -114,20 +114,7 @@ drm = dependency('libdrm',
 	version: '>=2.4.120',
 	fallback: 'libdrm',
 	default_options: [
-		'intel=disabled',
-		'radeon=disabled',
-		'amdgpu=disabled',
-		'nouveau=disabled',
-		'vmwgfx=disabled',
-		'omap=disabled',
-		'exynos=disabled',
-		'freedreno=disabled',
-		'tegra=disabled',
-		'vc4=disabled',
-		'etnaviv=disabled',
-		'cairo-tests=disabled',
-		'man-pages=disabled',
-		'valgrind=disabled',
+		'auto_features=disabled',
 		'tests=false',
 	],
 )