mmc: sdhci-of-arasan: Use sdhci_pltfm_remove()

Use sdhci_pltfm_remove() instead of sdhci_pltfm_unregister() because
sdhci_pltfm_unregister() is going to be removed.

Signed-off-by: Adrian Hunter <[e-mail]>
Reviewed-by: Andy Shevchenko <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Ulf Hansson <[e-mail]>

drivers/mmc/host/sdhci-of-arasan.c

···
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct sdhci_arasan_data *sdhci_arasan = sdhci_pltfm_priv(pltfm_host);
 	struct clk *clk_ahb = sdhci_arasan->clk_ahb;
+	struct clk *clk_xin = pltfm_host->clk;
 
 	if (!IS_ERR(sdhci_arasan->phy)) {
 		if (sdhci_arasan->is_phy_on)
···
 
 	sdhci_arasan_unregister_sdclk(&pdev->dev);
 
-	sdhci_pltfm_unregister(pdev);
+	sdhci_pltfm_remove(pdev);
 
+	clk_disable_unprepare(clk_xin);
 	clk_disable_unprepare(clk_ahb);
 }