Change in coreboot[master]: src/cpu,soc/amd/common/block/cpu: Add preload_microcode

[Raul Rangel (Code Review)]

Attention is currently required from: Jason Glenesk, Marshall Dawson, Paul Menzel, Rob Barnes, Karthik Ramasubramanian, Felix Held.
Hello build bot (Jenkins), Jason Glenesk, Marshall Dawson, Rob Barnes, Felix Held,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/58963

to look at the new patch set (#3).

Change subject: src/cpu,soc/amd/common/block/cpu: Add preload_microcode
......................................................................

src/cpu,soc/amd/common/block/cpu: Add preload_microcode

This will enable preloading the microcode. By preloading the
file, into cbfs_cache we reduce boot time.

BUG=b:179699789
TEST=Boot guybrush with CL chain and see microcode preloading and a
reduction of 1 ms.
| 112 - started reading uCode                         | 1.041     | 1.204     Δ(  0.16,    0.01%) |
| 113 - finished reading uCode                        | 1.365     | 0.011     Δ( -1.35,   -0.10%) |

Signed-off-by: Raul E Rangel 
Change-Id: If0c634c692c97769e71acd1175fc464dc592c356
---
M src/cpu/Makefile.inc
M src/include/cpu/amd/microcode.h
M src/soc/amd/common/block/cpu/update_microcode.c
3 files changed, 20 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/63/58963/3