riscv64: add NOEL-V FPGA target #1358

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2 errors and 10 warnings

The job was canceled because "riscv64-generic-qemu" failed.

The operation was canceled.

ignoring return value of 'fgets' declared with attribute 'warn_unused_result' [-Wunused-result]

ignoring return value of 'write' declared with attribute 'warn_unused_result' [-Wunused-result]

ignoring return value of 'pipe' declared with attribute 'warn_unused_result' [-Wunused-result]

ignoring return value of 'write' declared with attribute 'warn_unused_result' [-Wunused-result]

format not a string literal and no format arguments [-Wformat-security]

#warning "poweroff unsupported, using halt as fallback" [-Wcpp]

variable 'opts' set but not used [-Wunused-but-set-variable]

"CSIZE" is not defined, evaluates to 0 [-Wundef]