rockchip: roc-rk3399-pc: Disable RAM_ROCKCHIP_DEBUG

Disable ram rockchip debug driver for roc-rk3399-pc
boards since we have verified ram in many instances
with respective U-Boot versions.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/configs/roc-pc-mezzanine-rk3399_defconfig b/configs/roc-pc-mezzanine-rk3399_defconfig
index f15dddc..c87a856 100644
--- a/configs/roc-pc-mezzanine-rk3399_defconfig
+++ b/configs/roc-pc-mezzanine-rk3399_defconfig
@@ -53,6 +53,7 @@
 CONFIG_REGULATOR_PWM=y
 CONFIG_REGULATOR_RK8XX=y
 CONFIG_PWM_ROCKCHIP=y
+# CONFIG_RAM_ROCKCHIP_DEBUG is not set
 CONFIG_RAM_RK3399_LPDDR4=y
 CONFIG_DM_RESET=y
 CONFIG_BAUDRATE=1500000