secfirmload: add softfloat binary [1/1]

PD#OTT-305

Problem:
need softfloat secfirmload.

Solution:
1.add softfloat secfirmload binary.
2.change dir struct to support hard and soft compilation.
commit e9cff2b6212aad1ae251a9afe1012ab66a6c3465

Verify:
P215 + Linux trunk
P215 + 668 SDK version

Change-Id: Id2701744a96f4ecb512275ca0dc8c54f0dc133c4
Signed-off-by: baoguo.chen <baoguo.chen@amlogic.com>
10 files changed