media: mediatek: vcodec: Fix non subdev architecture open power fail

According to subdev_bitmap bit value to open hardware power, need to
set subdev_bitmap value for non subdev architecture.

Fixes: c05bada3 ("media: mtk-vcodec: Add to support multi hardware decode")
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c

@@ -388,6 +388,8 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 			mtk_v4l2_err("Main device of_platform_populate failed.");
 			goto err_reg_cont;
 		}
+	} else {
+		set_bit(MTK_VDEC_CORE, dev->subdev_bitmap);
 	}
 
 	atomic_set(&dev->dec_active_cnt, 0);