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/configs/am335x_hs_evm_uart_defconfig b/configs/am335x_hs_evm_uart_defconfig
index aeeeaab..a1ee141 100644
--- a/configs/am335x_hs_evm_uart_defconfig
+++ b/configs/am335x_hs_evm_uart_defconfig
@@ -6,7 +6,7 @@
 CONFIG_TI_COMMON_CMD_OPTIONS=y
 CONFIG_DEFAULT_DEVICE_TREE="am335x-evm"
 CONFIG_AM33XX=y
-# CONFIG_SPL_MMC_SUPPORT is not set
+# CONFIG_SPL_MMC is not set
 CONFIG_SPL=y
 # CONFIG_SPL_FS_FAT is not set
 # CONFIG_SPL_LIBDISK_SUPPORT is not set