options/linux-headers: Define FS_UNRM_FL and FS_APPEND_FL
#define FS_IOC_FIEMAP _IOWR('f', 11, struct fiemap)
#define FS_SECRM_FL 0x00000001
+#define FS_UNRM_FL 0x00000002
#define FS_COMPR_FL 0x00000004
#define FS_SYNC_FL 0x00000008
#define FS_IMMUTABLE_FL 0x00000010
+#define FS_APPEND_FL 0x00000020
#define FS_NODUMP_FL 0x00000040
#define FS_NOATIME_FL 0x00000080
#define FS_NOCOMP_FL 0x00000400
