AgesaHeapRebase is an optional callout that allows AGESA to use a
coreboot-managed heap base address. Its internal default location
is determined by AMD_HEAP_START_ADDRESS which is defined as 4 MB.
Add a #define that AGESA may use once the feature is available.
BUG=b:74518368
Change-Id: Id23455779b1c8c4931ad1a3122587e09ad237ecc
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/25456
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
679f923cfc