static file: change location

Due to reorganizing the docker images to have their
own independent mount points, the path to the static
files has changed.

Change-Id: I1e406c3bdecb2b7720a78c6bb307a394a9bc0fdd
Reviewed-on: https://review.linaro.org/c/infrastructure/linaro-license-protection/+/35007
Reviewed-by: Kelley Spoon <kelley.spoon@linaro.org>