Commit b238e4b0 ("rockchip: Cleanup of make_fit_atf.py.") set
firmware = "atf_1";
loadables = "uboot","atf_1","atf_2";

Actually it should be:
firmware = "atf_1";
loadables = "uboot","atf_2","atf_3";
Signed-off-by: NAndy Yan <andy.yan@rock-chips.com>
Reviewed-by: NKever Yang <kever.yang@rock-chips.com>