drm/bochs: Remove references to struct drm_device.pdev

Using struct drm_device.pdev is deprecated. Convert bochs to struct
drm_device.dev. No functional changes.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201201103542.2182-5-tzimmermann@suse.de

drivers/gpu/drm/bochs/bochs_drv.c

@@ -121,7 +121,6 @@ static int bochs_pci_probe(struct pci_dev *pdev,
 	if (ret)
 		goto err_free_dev;
 
-	dev->pdev = pdev;
 	pci_set_drvdata(pdev, dev);
 
 	ret = bochs_load(dev);

drivers/gpu/drm/bochs/bochs_hw.c

@@ -110,7 +110,7 @@ int bochs_hw_load_edid(struct bochs_device *bochs)
 int bochs_hw_init(struct drm_device *dev)
 {
 	struct bochs_device *bochs = dev->dev_private;
-	struct pci_dev *pdev = dev->pdev;
+	struct pci_dev *pdev = to_pci_dev(dev->dev);
 	unsigned long addr, size, mem, ioaddr, iosize;
 	u16 id;
 
@@ -201,7 +201,7 @@ void bochs_hw_fini(struct drm_device *dev)
 		release_region(VBE_DISPI_IOPORT_INDEX, 2);
 	if (bochs->fb_map)
 		iounmap(bochs->fb_map);
-	pci_release_regions(dev->pdev);
+	pci_release_regions(to_pci_dev(dev->dev));
 	kfree(bochs->edid);
 }