nutdrv_qx: rename 'blzr' driver to 'nutdrv_qx'

Reference: http://lists.alioth.debian.org/pipermail/nut-upsdev/2013-November/006555.html
nutdrv_qx: remove superfluous indications from the HCL
nutdrv_qx: readd HCL's items lost with the revert of the voltronic merge