Use latest OpenSBI that include support for dynamic firmware loader.
That allows us to use OpenSBI similar to BL31 on aarch64:
* coreboot loads the payload
* coreboot loads OpenSBI ELF right before payload handoff
* OpenSBI does platform lockdown and provides runtime services
* OpenSBI hands control to already loaded payload
The uncompressed compiled OpenSBI code is about 41KiB.
Required to boot GNU/Linux on qemu-riscv as some instructions needs to be
emulated by SBI.
Change-Id: If7ed706bc54a75fb583a8aa46fdd61ae7d18c546
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34139
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
b5871e5ccf