do not crash readXLMetaNoData - if the xl.meta has incorrect content (#14538)

```
tmp = buf[want:]
```

Would potentially crash when `buf` is truncated for some reason
and does not have the expected bytes, this is of course considered
not normal and is an odd situation. But we do not need to crash
here instead allow for errors to be returned and let callers handle
the errors.

cmd/xl-storage-format-v2_test.go

@@ -18,10 +18,13 @@
 package cmd
 
 import (
+	"bufio"
 	"bytes"
+	"compress/gzip"
 	"encoding/json"
 	"fmt"
 	"io"
+	"os"
 	"sort"
 	"testing"
 	"time"
@@ -34,6 +37,29 @@ import (
 	"github.com/minio/minio/internal/ioutil"
 )
 
+func TestReadXLMetaNoData(t *testing.T) {
+	f, err := os.Open("testdata/xl.meta-corrupt.gz")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer f.Close()
+
+	gz, err := gzip.NewReader(bufio.NewReader(f))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	buf, err := io.ReadAll(gz)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	_, err = readXLMetaNoData(bytes.NewReader(buf), int64(len(buf)))
+	if err == nil {
+		t.Fatal("expected error but returned success")
+	}
+}
+
 func TestXLV2FormatData(t *testing.T) {
 	failOnErr := func(err error) {
 		t.Helper()