soc/intel/broadwell: convert to using common MP and SMM init

In order to reduce duplication of code use the common MP and SMM
initialization flow.

Change-Id: I74c81c5d18dff7a84bfedbe07f01e536c0f641fa
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14595
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <dlaurie@google.com>
4 files changed