mmc: Rename MMC_SUPPORT to MMC

Rename these options so that CONFIG_IS_ENABLED can be used with them.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
[trini: Fixup some incorrect renames]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/mach-socfpga/spl_soc64.c b/arch/arm/mach-socfpga/spl_soc64.c
index cb98ab3..ba6efc1 100644
--- a/arch/arm/mach-socfpga/spl_soc64.c
+++ b/arch/arm/mach-socfpga/spl_soc64.c
@@ -14,7 +14,7 @@
 	return BOOT_DEVICE_MMC1;
 }
 
-#if IS_ENABLED(CONFIG_SPL_MMC_SUPPORT)
+#if IS_ENABLED(CONFIG_SPL_MMC)
 u32 spl_boot_mode(const u32 boot_device)
 {
 	if (IS_ENABLED(CONFIG_SPL_FS_FAT) || IS_ENABLED(CONFIG_SPL_FS_EXT4))