mmc: Migrate MMC_SUPPORTS_TUNING to Kconfig

The constraints on the MMC_SUPPORTS_TUNING symbol can easily be
expressed in Kconfig (with the addition of SPL_MMC_SUPPORTS_TUNING).
Furthermore, in order to remove <common.h> from the MMC subsystem, the
way this symbol is used today needs to be changed in order to continue
functioning.

Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Tom Rini <trini@konsulko.com>

include/configs/mt7621.h

@@ -14,9 +14,6 @@
 
 #define CFG_SYS_INIT_SP_OFFSET		0x800000
 
-/* MMC */
-#define MMC_SUPPORTS_TUNING
-
 /* Serial SPL */
 #if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_SERIAL)
 #define CFG_SYS_NS16550_CLK		50000000

include/configs/mt7623.h

@@ -11,9 +11,6 @@
 
 #include <linux/sizes.h>
 
-/* MMC */
-#define MMC_SUPPORTS_TUNING
-
 /* DRAM */
 #define CFG_SYS_SDRAM_BASE		0x80000000
 

include/configs/octeontx2_common.h

@@ -19,9 +19,4 @@
 					"loadaddr=20080000\0"	\
 					"ethrotate=yes\0"
 
-#if defined(CONFIG_MMC_OCTEONTX)
-#define MMC_SUPPORTS_TUNING
-/** EMMC specific defines */
-#endif
-
 #endif /* __OCTEONTX2_COMMON_H__ */

include/mmc.h

@@ -18,13 +18,6 @@
 
 struct bd_info;
 
-#if CONFIG_IS_ENABLED(MMC_HS200_SUPPORT)
-#define MMC_SUPPORTS_TUNING
-#endif
-#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
-#define MMC_SUPPORTS_TUNING
-#endif
-
 /* SD/MMC version bits; 8 flags, 8 major, 8 minor, 8 change */
 #define SD_VERSION_SD	(1U << 31)
 #define MMC_VERSION_MMC	(1U << 30)
@@ -485,7 +478,7 @@ struct dm_mmc_ops {
 	 */
 	int (*get_wp)(struct udevice *dev);
 
-#ifdef MMC_SUPPORTS_TUNING
+#if CONFIG_IS_ENABLED(MMC_SUPPORTS_TUNING)
 	/**
 	 * execute_tuning() - Start the tuning process
 	 *