Fix Moblab script installation paths

Cannot expect the paths to have slashes.
Also standardizing brackets in Makefiles

BUG=b:302363885
TEST=built image locally and seeing the scripts in expected places

Change-Id: Ibc8b1718fbd1be66f8b79a0cb811c6f211951201
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/moblab/+/4973994
Commit-Queue: Varun Thammineni <varunth@google.com>
Reviewed-by: Varun Thammineni <varunth@google.com>
Tested-by: Varun Thammineni <varunth@google.com>
Auto-Submit: Michal Matyjek <mmatyjek@google.com>
Tested-by: Michal Matyjek <mmatyjek@google.com>
3 files changed