feat(versal-net): get the handoff params using IPI

Use the IPI command GET_HANDOFF_PARAM to get the PLM to TF-A handoff
parameters. The BL32/BL33 information from the handoff parameters will
be used by TF-A.

If no valid PLM to TF-A handoff parameters are available then,
the TF-A will fall back to the build time information or defaults
set in the TF-A for BL32/BL33.

Once the bootmode identification is supported the default configuration
will be done only for JTAG and for all other bootmodes PLM to TF-A
handoff parameters will be used.

Change-Id: Ia2204fe30fea6f32b4e5d2610820217e6ed23e4d
Signed-off-by: Akshay Belsare <akshay.belsare@amd.com>
1 file changed