vboot: various Makefile cleanups

- Lists should be alphabetically sorted
- No need for CHROMEOS_ENVIRONMENT variable
- Remove some defunct sections
- Merge VBINIT and VBSLK into FWLIB

BUG=b:124141368
TEST=make clean && make runtests
BRANCH=none

Change-Id: Id05508a8be6273f11c1886fd9a35d30be4bb778f
Signed-off-by: Joel Kitching <kitching@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/1773087
Reviewed-by: Joel Kitching <kitching@chromium.org>
Commit-Queue: Joel Kitching <kitching@chromium.org>
Tested-by: Joel Kitching <kitching@chromium.org>
1 file changed