ram: rename CONFIG_SPL_RAM_SUPPORT to CONFIG_SPL_RAM

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/Makefile b/drivers/Makefile
index 8630a58..3b38861 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -24,7 +24,7 @@
 obj-$(CONFIG_SPL_ETH_SUPPORT) += net/
 obj-$(CONFIG_SPL_ETH_SUPPORT) += net/phy/
 obj-$(CONFIG_SPL_USBETH_SUPPORT) += net/phy/
-obj-$(CONFIG_SPL_RAM_SUPPORT) += ram/
+obj-$(CONFIG_SPL_RAM) += ram/
 obj-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += usb/musb-new/
 obj-$(CONFIG_SPL_USBETH_SUPPORT) += usb/gadget/
 obj-$(CONFIG_SPL_WATCHDOG_SUPPORT) += watchdog/