drm/radeon: fix typo in Makefile

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile
index 0adf49e..ed38262 100644
--- a/drivers/gpu/drm/radeon/Makefile
+++ b/drivers/gpu/drm/radeon/Makefile
@@ -63,6 +63,6 @@
 	evergreen.o
 
 radeon-$(CONFIG_COMPAT) += radeon_ioc32.o
-radeon-$(CONFIG_VGA_SWITCHEROO) += radone_atpx_handler.o
+radeon-$(CONFIG_VGA_SWITCHEROO) += radeon_atpx_handler.o
 
 obj-$(CONFIG_DRM_RADEON)+= radeon.o