rockchip: rk322x: update TPL_TEXT_BASE

The boot0 hook including the 4-byte TAG which is at the beginning
of the TEXT_BASE, now we can use a aligned TEXT BASE.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>