Fix API URLs - defconf tests.
Fix API URLs - defconf tests.

  * Fix API URLs for defconf handler tests.

Change-Id: I82f18eb9bf288c9d0f84342a164ae9c679478d2e

joyxu/kernelci-backend,joyxu/kernelci-backend,kernelci/kernelci-backend,kernelci/kernelci-backend,joyxu/kernelci-backend