rockchip: rk3399-ficus: Enable TPL and use common bss and stack addr

rockchip: rk3399-ficus: Enable TPL and use common bss and stack addr

The rk3399-ficus board is only using SPL and not TPL+SPL like all other
RK3399 boards, chromebook bob/kevin excluded. It does not seem to be any
technical reason why this board was left using only SPL.

Switch to use TPL+SPL and to use the common bss and stack addresses
introduced in commit 008ba0d56d00 ("rockchip: Add common default bss and
stack addresses"). Also add the missing DEFAULT_FDT_FILE option.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>