build: introduction of archConvertStatFs function

Type of StatFs is not always declared as int64 for all the architecture(e.g s390x).
The function archConvertStatFs could be reimplemented for other architecture
to correctly convert the StatFs.Type.

Fixes: #908

Signed-off-by: Alice Frosi <afrosi@de.ibm.com>

cli/oci.go

@@ -123,7 +123,7 @@ func isCgroupMounted(cgroupPath string) bool {
 		return false
 	}
 
-	if statFs.Type != int64(cgroupFsType) {
+	if statFs.Type != archConvertStatFs(cgroupFsType) {
 		return false
 	}
 

cli/utils_arch_base.go

@@ -0,0 +1,10 @@
+// +build !s390x
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package main
+
+func archConvertStatFs(cgroupFsType int) int64 {
+	return int64(cgroupFsType)
+}