R-Car DU HDMI Support for 3rd Snapshot of LTSI-3.14 Backports for Renesas SoCs and Drivers

* 3rd Snapshot of LTSI-3.14 Backports for Renesas SoCs and Drivers
* Added:
  - Integration of R-Car DU HDMI for the Koelsch board
Merge branch 'backport/v3.14.24-ltsi-rc1+v3.14.26/snapshot-merge.wip', tag 'backport/v3.14.24-ltsi-rc1/mach-shmobile-for-hdmi-20141211' into backport/v3.14.24-ltsi-rc1+v3.14.26/snapshot-merge+hdmi.wip