Change in coreboot[master]: src/arch/ppc64/*: pass FDT address to payload

[Sergii Dmytruk (Code Review)]

Attention is currently required from: Timothy Pearson, Ron Minnich.
Hello build bot (Jenkins), Arthur Heymans, Timothy Pearson, Ron Minnich,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/57084

to look at the new patch set (#20).

Change subject: src/arch/ppc64/*: pass FDT address to payload
......................................................................

src/arch/ppc64/*: pass FDT address to payload

It's available in %r3 in bootblock and needs to be passed first to
romstage, then to ramstage, where it's put into CMBEM to be read on
starting payload.

Change-Id: I0911f4b534c6f8cacfa057a5bad7576fec711637
Signed-off-by: Sergii Dmytruk 
---
M src/arch/ppc64/boot.c
M src/arch/ppc64/bootblock_crt0.S
M src/commonlib/include/commonlib/cbmem_id.h
M src/mainboard/emulation/qemu-power8/memlayout.ld
M src/mainboard/emulation/qemu-power9/memlayout.ld
5 files changed, 44 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/84/57084/20