rockchip: dwmmc: add rk2928-dw-mshc compatible

The rk3188 works nicely with the rockchip mmc driver, so we just need
to add the different compatible for it - as used in the Linux kernel.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>

drivers/mmc/rockchip_dw_mmc.c

@@ -156,6 +156,7 @@ static int rockchip_dwmmc_bind(struct udevice *dev)
 }
 
 static const struct udevice_id rockchip_dwmmc_ids[] = {
+	{ .compatible = "rockchip,rk2928-dw-mshc" },
 	{ .compatible = "rockchip,rk3288-dw-mshc" },
 	{ }
 };