boards/riscv: Enable ddr switch to compile ddr driver. [1/1]

PD#SWPL-61630

Problem:
Enable ddr switch to compile ddr driver.

Solution:
Enable ddr switch to compile ddr driver.

Verify:
T5W_AT301/T5W_AT309

Change-Id: Idbeec8b3c5aa6826fa585a5d4c5045fd1a203130
Signed-off-by: Xiaohu.Huang <xiaohu.huang@amlogic.com>
3 files changed
tree: 560d44f0f58bdd45d21b8c90476937e1ab4f88a7
  1. am301_t950d4/
  2. at301_t962d4/
  3. at309_t962d4/
  4. CMakeLists.txt
  5. Kconfig