arm64: zynqmp: Enable SPL ram support

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/configs/xilinx_zynqmp_zc1751_xm019_dc5_defconfig b/configs/xilinx_zynqmp_zc1751_xm019_dc5_defconfig
index 889286b..cb0e787 100644
--- a/configs/xilinx_zynqmp_zc1751_xm019_dc5_defconfig
+++ b/configs/xilinx_zynqmp_zc1751_xm019_dc5_defconfig
@@ -14,6 +14,8 @@
 # CONFIG_DISPLAY_BOARDINFO is not set
 CONFIG_SPL=y
 CONFIG_SPL_OS_BOOT=y
+CONFIG_SPL_RAM_SUPPORT=y
+CONFIG_SPL_RAM_DEVICE=y
 CONFIG_SYS_PROMPT="ZynqMP> "
 CONFIG_CMD_MEMTEST=y
 CONFIG_CMD_CLK=y