[TASK] Revise CN Qsys sub system

- Move EPCS flash IP-Core to toplevel

Change-Id: I25470acf5f1f5e9cc23ac90bd115f54bec84bbf6
[TASK] Revise EPCS Flash programming

- Add program-epcs.sh script that can program an EPCS flash without
  connecting to Nios II instance (no need to erase flash before).
- Add EPCS support to driver application scripts.
- Add chain and converter setting files to TERASIC DE2-115 board.

Change-Id: Ia03a2dcd211c150cdb429b8e3dca42377cfdacec
[TASK] Revise Qsys subsystem of MN Altera drivers

Change-Id: If87a97422a8cad0af95f6c24a37949c4d271983f
[FEATURE] Add Quartus and Qsys project for Antares Interface

- Add MN pcp subsystem
- Add 256kx16 SRAM (tri-state-bridge)
- Add openMAC for single phy
- Add EPCS ipcore for M25P80 flash

TODO:
- Add PCIe
- Add LED control
- Connect config pins
- Connect unused outputs

Change-Id: I3df33fb6c4f5142a8f32f6a0ca48523fe3881713
[TEMP] Add skeleton liboplkmndrv-pcie

Change-Id: Ic9d52b832f9623226b30de3995407c8aab9f0132