Drop the deprecated COREBOOTPAYLOAD option, and replace it with MrChromebox's
updated UefiPayloadPkg option. Simplify the Kconfig options to make it easier
to build from upstream edk2 master. Drop the TIANOCORE_USE_8254_TIMER Kconfig
option since it applied only to CorebootPayloadPkg. Clean up the Makefile now
that we're only building from a single Tianocore package/target.
Test: build/boot qemu Q35 target with both UefiPayload and Upstream options.
Change-Id: If545fbd0c30be6dcc6ff43107b80980fa23a527e
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54019
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>