bump opencontainers/selinux to v1.2

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

vendor/github.com/opencontainers/selinux/go-selinux/selinux_stub.go

@@ -96,15 +96,44 @@ func SetExecLabel(label string) error {
 	return nil
 }
 
+/*
+SetSocketLabel sets the SELinux label that the kernel will use for any programs
+that are executed by the current process thread, or an error.
+*/
+func SetSocketLabel(label string) error {
+	return nil
+}
+
+// SocketLabel retrieves the current socket label setting
+func SocketLabel() (string, error) {
+	return "", nil
+}
+
+// SetKeyLabel takes a process label and tells the kernel to assign the
+// label to the next kernel keyring that gets created
+func SetKeyLabel(label string) error {
+	return nil
+}
+
+// KeyLabel retrieves the current kernel keyring label setting
+func KeyLabel() (string, error) {
+	return "", nil
+}
+
 // Get returns the Context as a string
 func (c Context) Get() string {
 	return ""
 }
 
 // NewContext creates a new Context struct from the specified label
-func NewContext(label string) Context {
+func NewContext(label string) (Context, error) {
 	c := make(Context)
-	return c
+	return c, nil
+}
+
+// ClearLabels clears all reserved MLS/MCS levels
+func ClearLabels() {
+	return
 }
 
 // ReserveLabel reserves the MLS/MCS level component of the specified label
@@ -177,8 +206,8 @@ func Chcon(fpath string, label string, recurse bool) error {
 
 // DupSecOpt takes an SELinux process label and returns security options that
 // can be used to set the SELinux Type and Level for future container processes.
-func DupSecOpt(src string) []string {
-	return nil
+func DupSecOpt(src string) ([]string, error) {
+	return nil, nil
 }
 
 // DisableSecOpt returns a security opt that can be used to disable SELinux