HPCC-9902 Use the build version as the ecl version reported by eclcc

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
Merge pull request #4790 from ghalliday/issue9902

HPCC-9902 Use the build version as the ecl version reported by eclcc

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>