Merge "Revert "rust: Make AttPermissions compatible with libbitflags 2.2.1"" into udc-mainline-prod

    ///

    /// These values are from Core Spec 5.3 Vol 3G 3.3.1.1 Characteristic Properties,

    /// and also match what Android uses in JNI.

    #[derive(Copy, Clone, Debug, PartialEq, Eq)]

    pub struct AttPermissions : u8 {

        /// Attribute can be read using READ_REQ

        const READABLE = 0x02;