Requesting the framebuffer memory in simpledrm marks the memory
range as busy. This used to be done by the firmware sysfb code,
but the driver is the correct place.

v2:
	* use I/O memory if request_mem_region() fails (Jocelyn)
Signed-off-by: NThomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: NJavier Martinez Canillas <javierm@redhat.com>
Reviewed-by: NJocelyn Falempe <jfalempe@redhat.com>
Reviewed-by: NHans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220125091222.21457-4-tzimmermann@suse.de