rockchip: rk3399: pass board specific message to BL31

Sometimes we need to pass board specific messages to BL31,
so that BL31 can do board specific operation based on
common code.

BRANCH=None
BUG=chrome-os-partner:51924
TEST=Build gru

Change-Id: I096878699c6e6933debdf2fb3423734f538691ae
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: af83e1b
Original-Change-Id: Ib7585ce7d3bf01d3ce53b388bf9bd60f3b65f5f1
Original-Signed-off-by: Lin Huang <hl@rock-chips.com>
Original-Signed-off-by: Douglas Anderson <dianders@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/349700
Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://review.coreboot.org/15116
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
3 files changed