Bazel: Fix building from non-root workspace directory
Bazel: Fix building from non-root workspace directory

Support for Remote Bazel Execution was added in this change:
Ia18e5fd55f8. However, the import statement in .bazelrc:

  import tools/remote-bazelrc

missed to prefix the tools directory with %workspace% prefix and
thus broke running the build from non root-workspace directory.

Change-Id: I85673659138e23d25eaecf40606d57706fe9f6e1

GerritCodeReview/gerrit,WANdisco/gerrit,qtproject/qtqa-gerrit,GerritCodeReview/gerrit,WANdisco/gerrit,qtproject/qtqa-gerrit,qtproject/qtqa-gerrit,GerritCodeReview/gerrit,WANdisco/gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit,WANdisco/gerrit,qtproject/qtqa-gerrit,WANdisco/gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit,WANdisco/gerrit,WANdisco/gerrit,qtproject/qtqa-gerrit,qtproject/qtqa-gerrit,qtproject/qtqa-gerrit