[TASK] Revise FPGA CN demos by using process image functions

With this commit the Altera and Xilinx FPGA CN demos use in- and output
process images.

Change-Id: I9ac1ed465f1bc4ba107e4ebc4be28a272f1c792d
Reviewed-on: http://brateggevoat1/gerrit/1343
Tested-by: Jenkins <jenkins@brateggevoat1.br-automation.co.at>
Reviewed-by: Joerg Zelenka <joerg.zelenka@br-automation.com>
Reviewed-by: Josef Baumgartner <josef.baumgartner@br-automation.com>
[TASK] Add Lcd to Altera MN demos

* Add Lcd software modules to MN example
* Insert Lcd core into MN host design
* Extend Lcd module to print error value

Change-Id: I47ee5a4605723a538f8688ee6cb2f5599c14f741
Reviewed-on: http://brateggevoat1/gerrit/1310
Tested-by: Jenkins <jenkins@brateggevoat1.br-automation.co.at>
Reviewed-by: Joerg Zelenka <joerg.zelenka@br-automation.com>
Reviewed-by: Josef Baumgartner <josef.baumgartner@br-automation.com>
[TASK] Add support to receive termination signals in the system module

Change-Id: I1c988b61523b5295cbbf7118dfa34f04988f31b7
Reviewed-on: http://brateggevoat1/gerrit/1318
Tested-by: Jenkins <jenkins@brateggevoat1.br-automation.co.at>
Reviewed-by: Josef Baumgartner <josef.baumgartner@br-automation.com>
[TASK] React on termination signals in demo_mn_console

Change-Id: I5264c2dc6a7ef6044c87f94d78404dc8e5841836
Reviewed-on: http://brateggevoat1/gerrit/1319
Tested-by: Jenkins <jenkins@brateggevoat1.br-automation.co.at>
Reviewed-by: Josef Baumgartner <josef.baumgartner@br-automation.com>
[TASK] React on termination signals in demo_cn_console

Change-Id: Idd82a75a574df9af0c6a2af4b714440595f418ed
Reviewed-on: http://brateggevoat1/gerrit/1320
Tested-by: Jenkins <jenkins@brateggevoat1.br-automation.co.at>
Reviewed-by: Josef Baumgartner <josef.baumgartner@br-automation.com>
[TASK] Remove EplApiLinux.h

It is no longer used as now whole user part runs in Linux userspace
and special Linux API layer is no longer needed.

Change-Id: I5b3d50513ab39da707669da12d4ed20cc3e9f87a
Reviewed-on: http://brateggevoat1/gerrit/1371
Tested-by: Jenkins <jenkins@brateggevoat1.br-automation.co.at>
Reviewed-by: Josef Baumgartner <josef.baumgartner@br-automation.com>