abuild: make build directory configurable with a variable

Allow overriding the build directly (default: coreboot-builds)
using the COREBOOT_BUILD_DIR variable, in addition to setting
it through the -o parameter.
This helps with build nodes where jenkins wants to run the
same command everywhere but allows different environment
variables.

Change-Id: If907897cf6ac01caa7d1e4b51aad4c005356bc5b
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/4543
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

0 files changed, 0 insertions, 0 deletions