drm/mgag200: fix spelling mistake "expeced" -> "expected"

There is a spelling mistake in a drm_warn message. Fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20200826084727.42703-1-colin.king@canonical.com

drivers/gpu/drm/mgag200/mgag200_drv.c

@@ -168,7 +168,7 @@ static void mgag200_g200_interpret_bios(struct mga_device *mdev,
 		return;
 	}
 	if (pins_len != expected_length[version]) {
-		drm_warn(dev, "Unexpected BIOS PInS size: %d expeced: %d\n",
+		drm_warn(dev, "Unexpected BIOS PInS size: %d expected: %d\n",
 			 pins_len, expected_length[version]);
 		return;
 	}