fix android build errors and warnings

Signed-off-by: fufesou <shuanglongchen@yeah.net>

src/platform/mod.rs

@@ -14,6 +14,7 @@ pub mod macos;
 #[cfg(target_os = "linux")]
 pub mod linux;
 
+#[cfg(not(any(target_os = "android", target_os = "ios")))]
 use hbb_common::{message_proto::CursorData, ResultType};
 #[cfg(not(target_os = "macos"))]
 const SERVICE_INTERVAL: u64 = 300;