ARM64 Platform support for RZ/G2M

configname: CONFIG_ARCH_R8A774A1

Linux Kernel Configuration
└─>Device Drivers
└─>SOC (System On Chip) specific Drivers
└─>Renesas SoC driver support
└─>ARM64 Platform support for RZ/G2M
In linux kernel since version 4.2 (release Date: 2015-08-30)  
This enables support for the Renesas RZ/G2M SoC.