drm/via: Embed via_dma in via_dri1

Moved the copyright notices so all copyrights are kept.
A few variables was made static as there are no more users outside this
file.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Kevin Brace <kevinbrace@bracecomputerlab.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220713170202.1798216-3-sam@ravnborg.org

drivers/gpu/drm/via/Makefile

@@ -3,6 +3,6 @@
 # Makefile for the drm device driver.  This driver provides support for the
 # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
 
-via-y    := via_irq.o via_dri1.o via_map.o via_mm.o via_dma.o via_verifier.o via_video.o via_dmablit.o
+via-y    := via_irq.o via_dri1.o via_map.o via_mm.o via_verifier.o via_video.o via_dmablit.o
 
 obj-$(CONFIG_DRM_VIA)	+=via.o

drivers/gpu/drm/via/via_drv.h

@@ -183,9 +183,6 @@ do {								\
 	remove_wait_queue(&(queue), &entry);			\
 } while (0)
 
-extern const struct drm_ioctl_desc via_ioctls[];
-extern int via_max_ioctl;
-
 extern int via_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
 extern int via_mem_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv);
 extern int via_mem_free(struct drm_device *dev, void *data, struct drm_file *file_priv);