ARM64 Platform support for R-Car H3 ES2.0+

configname: CONFIG_ARCH_R8A77951

Linux Kernel Configuration
└─>Device Drivers
└─>SOC (System On Chip) specific Drivers
└─>Renesas SoC driver support
└─>ARM64 Platform support for R-Car H3 ES2.0+
In linux kernel since version 5.1 (release Date: 2019-05-05)  
This enables support for the Renesas R-Car H3 SoC (revisions 2.0 and
later).
This includes different gradings like R-Car H3e, H3e-2G, and H3Ne.