rockchip: rk3288: Fix wrong TPL_TEXT_BASE

TPL offset 0xff704004 is unaligned address which is adding nearest
8-bytes for next instruction, So  0xff704004 is adding 0x20 for
proper alignment which is causing the next instruction data
0xefffffff is moved.

Hexdump with overlaped bytes:
-----------------------------
0000000 0000 0000 0000 0000 0000 0000 0000 0000
0000010 0000 0000 0000 0000 0000 0000 ffff eaff

So, Fix the TEXT_BASE for proper aligned address 0xff704000

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