rockchip: rk3288: Add TPL_LDSCRIPT

Due to size limitations in SPL by adding falcon mode,
rk3288 support TPL. In order to not overlap SPL_TEXT_BASE
add TPL_TEXT_BASE with u-boot-tpl.lds that intern call
u-boot-spl.lds with proper TEXT_BASE values.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>