drm/i915/guc:fix spelling mistake: "adddress" -> "address"

Trivial fix to spelling mistake in seq_printf message.

Fixes: a8b9370f ("drm/i915/guc: Dump the GuC stage descriptor pool in debugfs")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170516092235.28640-1-colin.king@canonical.com

drivers/gpu/drm/i915/i915_debugfs.c

@@ -2582,7 +2582,7 @@ static int i915_guc_stage_pool(struct seq_file *m, void *data)
 			   desc->db_trigger_uk);
 		seq_printf(m, "\tProcess descriptor: 0x%x\n",
 			   desc->process_desc);
-		seq_printf(m, "\tWorkqueue adddress: 0x%x, size: 0x%x\n",
+		seq_printf(m, "\tWorkqueue address: 0x%x, size: 0x%x\n",
 			   desc->wq_addr, desc->wq_size);
 		seq_putc(m, '\n');