fix: change selinux from config o bootdevice

Author: yasminvalim

config/fcos/v1_6_exp/schema.go

@@ -22,13 +22,13 @@ type Config struct {
 	base.Config `yaml:",inline"`
 	BootDevice  BootDevice `yaml:"boot_device"`
 	Grub        Grub       `yaml:"grub"`
-	Selinux     Selinux    `yaml:"selinux"`
 }
 
 type BootDevice struct {
-	Layout *string          `yaml:"layout"`
-	Luks   BootDeviceLuks   `yaml:"luks"`
-	Mirror BootDeviceMirror `yaml:"mirror"`
+	Layout  *string          `yaml:"layout"`
+	Luks    BootDeviceLuks   `yaml:"luks"`
+	Mirror  BootDeviceMirror `yaml:"mirror"`
+	Selinux Selinux          `yaml:"selinux"`
 }
 
 type BootDeviceLuks struct {