[TASK] Rework special function linking

- Relocate section header to include/common
- Create board design specific section headers

Change-Id: I9239ad2db1d188fc9492d9dee3001c9c4a79176a
[TASK] Setup board specific includes in Nios II projects

- Setup board specific includes in stack library
- Setup board specific includes in driver
- Setup board specific includes in app

Change-Id: Ib77631090ba5783afab1fb75c89e970f31d21169
[TASK] Setup board specific includes in Microblaze projects

- Setup board specific includes in omethlib
- Add install for board specific include directory

Change-Id: I896d788d7c44d477d531fd4c60f69399c0285ee8