abuild: Add -Z / --clean-somewhat option

This option removes everything in the build tree but coreboot.rom,
config.build, config.h and make.log - a useful subset of the tree for
further testing.

Change-Id: I27e559d8d7dc90d8fe5c4ed8e25249e202e5da36
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35136
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions