AMD DC - Enable new display engine

configname: CONFIG_DRM_AMD_DC

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)
└─>Display Engine Configuration
└─>AMD DC - Enable new display engine
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Choose this option if you want to use the new display engine
support for AMDGPU. This adds required support for Vega and
Raven ASICs.