base: Add version to base model.
base: Add version to base model.

Change-Id: Ieb712972c10bcce682d2b926a18e3bbe70c129fd

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