bochs: convert to drm_dev_register

The drm_get_pci_dev API is deprecated, replace it by drm_dev_register.

Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Link: http://patchwork.freedesktop.org/patch/msgid/20180906221810.20170-4-peter@lekensteyn.nl
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

drivers/gpu/drm/bochs/bochs.h

@@ -117,7 +117,7 @@ static inline u64 bochs_bo_mmap_offset(struct bochs_bo *bo)
 /* ---------------------------------------------------------------------- */
 
 /* bochs_hw.c */
-int bochs_hw_init(struct drm_device *dev, uint32_t flags);
+int bochs_hw_init(struct drm_device *dev);
 void bochs_hw_fini(struct drm_device *dev);
 
 void bochs_hw_setmode(struct bochs_device *bochs,