const golang.org/x/sys/unix.KEXEC_ARCH_X86_64

one use

	golang.org/x/sys/unix (current package)
		zerrors_linux.go#L1731: 	KEXEC_ARCH_X86_64                           = 0x3e0000

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)