Change in coreboot[master]: tianocore: Add option to use HPET timer

[Lijian Zhao (Code Review)]

Hello build bot (Jenkins),

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

https://review.coreboot.org/28542

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

Change subject: tianocore: Add option to use HPET timer
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tianocore: Add option to use HPET timer

Default tianocore payload select to use 8254 timer instead of hpet
timer, for SOC like cannonlake/coffeelake, 8254 timer had been clock
gated. Add option for tianocore payload to use HPET timer.

BUG=N/A.
TEST=Build and boot up into UEFI shell on whiskeylake rvp platform.

Change-Id: I857704b0ca128fc9da193ae26a33c7cf89ad7320
Signed-off-by: Lijian Zhao 
---
M payloads/external/tianocore/Kconfig
M payloads/external/tianocore/Makefile
A payloads/external/tianocore/patches/hpet/0001-CorebootPayload-Use-HPET-Timer.patch
3 files changed, 49 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/42/28542/3