rockchip: add support for Radxa ROCK Pi E v3.0

ROCK Pi E v3.0 uses DDR4 SDRAM instead of DDR3 SDRAM used in v1.2x.

prepare new rk3328-rock-pi-e-v3.dts in u-boot which just includes
upstream rk3328-rock-pi-e.dts.

defconfig still uses
 CONFIG_DEFAULT_FDT_FILE="rockchip/rk3328-rock-pi-e.dtb"

because v3.0 and prior are compatible.

Suggested-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: FUKAUMI Naoki <naoki@radxa.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
6 files changed