drm/tilcdc: Use drm_gem_cma_print_info()

There is a new core debugfs file that prints fb/gem info:
<debugfs>/dri/<n>/framebuffer

Use drm_gem_cma_print_info() to provide info to that output instead
of using drm_fb_cma_debugfs_show().

Cc: Jyri Sarha <jsarha@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171107191348.17555-11-noralf@tronnes.org

drivers/gpu/drm/tilcdc/tilcdc_drv.c

@@ -507,7 +507,6 @@ static int tilcdc_mm_show(struct seq_file *m, void *arg)
 static struct drm_info_list tilcdc_debugfs_list[] = {
 		{ "regs", tilcdc_regs_show, 0 },
 		{ "mm",   tilcdc_mm_show,   0 },
-		{ "fb",   drm_fb_cma_debugfs_show, 0 },
 };
 
 static int tilcdc_debugfs_init(struct drm_minor *minor)
@@ -541,6 +540,7 @@ static struct drm_driver tilcdc_driver = {
 	.lastclose          = tilcdc_lastclose,
 	.irq_handler        = tilcdc_irq,
 	.gem_free_object_unlocked = drm_gem_cma_free_object,
+	.gem_print_info     = drm_gem_cma_print_info,
 	.gem_vm_ops         = &drm_gem_cma_vm_ops,
 	.dumb_create        = drm_gem_cma_dumb_create,