Correct SPL uses of CMD_MMC

This converts 6 usages of this option to the non-SPL form, since there is
no SPL_CMD_MMC defined in Kconfig

Signed-off-by: Simon Glass <sjg@chromium.org>

include/configs/am62ax_evm.h

@@ -71,12 +71,12 @@
 #define BOOTENV_DEV_NAME_TI_MMC(devtyeu, devtypel, instance)		\
 	"ti_mmc "
 
-#if CONFIG_IS_ENABLED(CMD_MMC)
+#if IS_ENABLED(CONFIG_CMD_MMC)
 	#define BOOT_TARGET_MMC(func)					\
 		func(TI_MMC, ti_mmc, na)
 #else
 	#define BOOT_TARGET_MMC(func)
-#endif /* CONFIG_IS_ENABLED(CMD_MMC) */
+#endif /* IS_ENABLED(CONFIG_CMD_MMC) */
 
 #define BOOT_TARGET_DEVICES(func)					\
 	BOOT_TARGET_MMC(func)

include/configs/imx8mm-cl-iot-gate.h

@@ -30,7 +30,7 @@
 	EFI_GUID(0x0bf1165c, 0x1831, 0x4864, 0x94, 0x5e, \
 		 0xac, 0x3d, 0x38, 0x48, 0xf4, 0x99)
 
-#if CONFIG_IS_ENABLED(CMD_MMC)
+#if IS_ENABLED(CONFIG_CMD_MMC)
 # define BOOT_TARGET_MMC(func) \
 	func(MMC, mmc, 2)      \
 	func(MMC, mmc, 0)

include/configs/imx8mp_rsb3720.h

@@ -39,7 +39,7 @@
 
 #endif
 
-#if CONFIG_IS_ENABLED(CMD_MMC)
+#if IS_ENABLED(CONFIG_CMD_MMC)
 # define BOOT_TARGET_MMC(func) \
 	func(MMC, mmc, 2)      \
 	func(MMC, mmc, 1)

include/configs/rockchip-common.h

@@ -12,7 +12,7 @@
 #ifndef CONFIG_SPL_BUILD
 
 /* First try to boot from SD (index 1), then eMMC (index 0) */
-#if CONFIG_IS_ENABLED(CMD_MMC)
+#if IS_ENABLED(CONFIG_CMD_MMC)
 	#define BOOT_TARGET_MMC(func) \
 		func(MMC, mmc, 1) \
 		func(MMC, mmc, 0)

include/configs/rpi.h

@@ -122,7 +122,7 @@
 	"fdt_addr_r=0x02600000\0" \
 	"ramdisk_addr_r=0x02700000\0"
 
-#if CONFIG_IS_ENABLED(CMD_MMC)
+#if IS_ENABLED(CONFIG_CMD_MMC)
 	#define BOOT_TARGET_MMC(func) \
 		func(MMC, mmc, 0) \
 		func(MMC, mmc, 1) \