rockchip: rk3036 remove CONFIG_RAM from defconfig

rk3036 sdram driver does not use DM, remove CONFIG_RAM first.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>

configs/evb-rk3036_defconfig

@@ -30,7 +30,6 @@ CONFIG_MMC_DW=y
 CONFIG_MMC_DW_ROCKCHIP=y
 CONFIG_PINCTRL=y
 CONFIG_PINCTRL_ROCKCHIP_RK3036=y
-CONFIG_RAM=y
 # CONFIG_SPL_SERIAL_PRESENT is not set
 CONFIG_DEBUG_UART_BASE=0x20068000
 CONFIG_DEBUG_UART_CLOCK=24000000

configs/kylin-rk3036_defconfig

@@ -31,7 +31,6 @@ CONFIG_MMC_DW_ROCKCHIP=y
 CONFIG_PINCTRL=y
 CONFIG_PINCTRL_ROCKCHIP_RK3036=y
 CONFIG_DM_REGULATOR_FIXED=y
-CONFIG_RAM=y
 CONFIG_SYSRESET=y
 CONFIG_USB=y
 CONFIG_USB_STORAGE=y