Separate CI and presubmit artifacts

Store artifacts for presubmit builds in a separate directory based on
the build ID to avoid overwrting CI builds with the same kernel version.

BUG=b/204367125
TEST=presubmit
RELEASE_NOTE=None

Change-Id: I67b93a523c16b97bce7699224c9fee64137a4c22
Reviewed-on: https://cos-review.googlesource.com/c/third_party/kernel/+/28480
Reviewed-by: Meena Shanmugam <meenashanmugam@google.com>
Tested-by: Oleksandr Tymoshenko <ovt@google.com>
1 file changed