Add XCOFF64 binary created by Go compiler

[riptl]

Checklist

• Closing issues: #issue
• Mark this if you consider it ready to merge
• I've added tests (optional)
• I wrote some documentation

Description

The Go compiler is one of the few fully self-hosted toolchains that can produce XCOFF64 binaries for AIX. Therefore, good to have as a test case

Using Go 1.21.4

cat <<EOF > main.go
package main

import (
	"crypto/aes"
	"crypto/sha256"
	"fmt"
)

func main() {
	sum := sha256.Sum256([]byte{})
	cipher, _ := aes.NewCipher(sum[:])
	block := [aes.BlockSize]byte{
		0x99, 0xc3, 0xba, 0x1e, 0x94, 0x36, 0x19, 0xd1,
		0x2b, 0xa1, 0xb1, 0x5d, 0x42, 0xec, 0xbf, 0x21,
	}
	var dest [16]byte
	cipher.Decrypt(dest[:], block[:])
	fmt.Print(string(dest[:]))
	fmt.Println("3")
}
EOF

OOS=aix GOARCH=ppc64 go build