R-Car DU VSP Compositor Support

configname: CONFIG_DRM_RCAR_VSP

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>R-Car DU VSP Compositor Support
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Enable support to expose the R-Car VSP Compositor as KMS planes.