As long as clinfo doesn't report at least 1 device with type CL_DEVICE_TYPE_GPU (note: GPU and *not* CPU), oclHashcat also won't recognize any OpenCL GPU device.
I would recommend that you uninstall all those fglrx packages and cleanly install the recommended driver from support.amd.com
BTW: there is also a howto for installing the driver under linux http://hashcat.net/wiki/doku.php?id=linux_server_howto , but it is a little bit outdated. But it doesn't matter a lot since you just need to install the newest (recommended - see https://hashcat.net/oclhashcat/ - and supported) driver from the vendor's website (in your case support.amd.com). On the other hand, reading that wiki page doesn't hurt and might help to solve other problems.
I would recommend that you uninstall all those fglrx packages and cleanly install the recommended driver from support.amd.com
BTW: there is also a howto for installing the driver under linux http://hashcat.net/wiki/doku.php?id=linux_server_howto , but it is a little bit outdated. But it doesn't matter a lot since you just need to install the newest (recommended - see https://hashcat.net/oclhashcat/ - and supported) driver from the vendor's website (in your case support.amd.com). On the other hand, reading that wiki page doesn't hurt and might help to solve other problems.