[S] Change in coreboot[main]: ec/google/chromeec: Add debug timestamp for host EC commands

[Jayvik Desai (Code Review)]

Attention is currently required from: Caveh Jalali, Forest Mittelberg, Jayvik Desai, Kapil Porwal.

Hello Caveh Jalali, Forest Mittelberg, Kapil Porwal, Subrata Banik, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/85326?usp=email

to look at the new patch set (#9).

Change subject: ec/google/chromeec: Add debug timestamp for host EC commands
......................................................................

ec/google/chromeec: Add debug timestamp for host EC commands

Improve host EC command debugging with timestamps and duration for
better analysis, this feature can be enabled by selecting the config
EC_GOOGLE_CHROMEEC_HOST_CMD_DEBUG.

BUG=none
TEST=Brox/lotso device successfully built and booted. Debug messages
confirmed in device logs only when the specific configuration is
selected. Sample print: "EC HOST CMD end timestamp: 356384 us,
Duration: 661 us, Command: 0x4b, version: 0x0"

Change-Id: I8ab89830ede940d2237ad21187b137dca9689fb0
Signed-off-by: Jayvik Desai 
---
M src/ec/google/chromeec/Kconfig
M src/ec/google/chromeec/ec_lpc.c
2 files changed, 18 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/26/85326/9