Revert "Removed masking of L0 bits for technical TCK"
This reverts commit c76f16f0
This change was not well thought-out, and it needs to be reverted. It was not mergerd to 2016-patches, so no action needed there
This reverts commit c76f16f0
This change was not well thought-out, and it needs to be reverted. It was not mergerd to 2016-patches, so no action needed there