soc: Add Kconfig for each soc vendor

Allows explicit ordering for vendors that share a common configuration
that must be sourced last.

The issue is that chips in soc/{amd,intel}/[ab].* will be able to
override defaults set in this file, but Kconfig files that get sourced
later (soc/amd/[d-z].*) will NOT be able to override these defaults.

Note: intel and amd soc chips now need to be added manually to the new
Kconfig file

TEST=make lint-stable

Change-Id: Ida82ef184712e092aec1381a47aa1b54b74ed6b6
Signed-off-by: Chris Ching <>
Tested-by: build bot (Jenkins) <>
Reviewed-by: Aaron Durbin <>
14 files changed