Change in coreboot[master]: payload/external/iPXE/Makefile: Clean up the repo before checking out

[Michał Żygowski (Code Review)]

Attention is currently required from: Felix Singer, Martin Roth, Stefan Reinauer.
Hello Felix Singer, build bot (Jenkins), Martin Roth, Stefan Reinauer,

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

https://review.coreboot.org/c/coreboot/+/60007

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

Change subject: payload/external/iPXE/Makefile: Clean up the repo before checking out
......................................................................

payload/external/iPXE/Makefile: Clean up the repo before checking out

The iPXE file src/config/general.h is being modified when built for
the first time due to various options like HAS_SCRIPT,PXE_NO_PROMPT
or PXE_HAS_HTTPS. This leaves the repo in an unclean state and when
rebuilt git yields an error when checking out the master branch:

error: Your local changes to the following files would be overwritten by checkout:
    src/config/general.h
Please commit your changes or stash them before you switch branches.
Aborting
fatal: A branch named 'coreboot' already exists.

Avoid the error by forcing master branch checkout.

TEST=Build coreboot apu2 with iPXE, then change an arbitrary
configuration option to trigger rebuild of payloads. iPXE is rebuild
without issues.

Signed-off-by: Michał Żygowski 
Change-Id: If3cfbb4c74c6397b00463087aeac58efb2777bbe
---
M payloads/external/iPXE/Makefile
1 file changed, 1 insertion(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/07/60007/3