mmc: tmio,renesas_sdhi: move ssc_tappos to renesas_sdhi.h

struct tmio_mmc_host has "scc_tappos", but in fact, it is Renesas
private data. Move it to renesas_sdhi.h

Signed-off-by: Masahiro Yamada <[e-mail]>
Reviewed-by: Wolfram Sang <[e-mail]>
Signed-off-by: Ulf Hansson <[e-mail]>

drivers/mmc/host/renesas_sdhi.h

···
 	struct pinctrl *pinctrl;
 	struct pinctrl_state *pins_default, *pins_uhs;
 	void __iomem *scc_ctl;
+	u32 scc_tappos;
 };
 
 #define host_to_priv(host) \

drivers/mmc/host/renesas_sdhi_core.c

···
 		       ~SH_MOBILE_SDHI_SCC_RVSCNTL_RVSEN &
 		       sd_scc_read32(host, priv, SH_MOBILE_SDHI_SCC_RVSCNTL));
 
-	sd_scc_write32(host, priv, SH_MOBILE_SDHI_SCC_DT2FF, host->scc_tappos);
+	sd_scc_write32(host, priv, SH_MOBILE_SDHI_SCC_DT2FF, priv->scc_tappos);
 
 	/* Read TAPNUM */
 	return (sd_scc_read32(host, priv, SH_MOBILE_SDHI_SCC_DTCNTL) >>
···
 		for (i = 0; i < of_data->taps_num; i++) {
 			if (taps[i].clk_rate == 0 ||
 			    taps[i].clk_rate == host->mmc->f_max) {
-				host->scc_tappos = taps->tap;
+				priv->scc_tappos = taps->tap;
 				hit = true;
 				break;
 			}

drivers/mmc/host/tmio_mmc.h

···
 	struct mutex		ios_lock;	/* protect set_ios() context */
 	bool			native_hotplug;
 	bool			sdio_irq_enabled;
-	u32			scc_tappos;
 
 	/* Mandatory callback */
 	int (*clk_enable)(struct tmio_mmc_host *host);