ksud: ensure ksud context when install (#356)

Incorrect se context will make module system broken

userspace/ksud/src/event.rs

@@ -3,7 +3,7 @@ use log::{info, warn};
 use std::{collections::HashMap, path::Path};
 
 use crate::{
-    assets, defs, mount,
+    assets, defs, mount, restorecon,
     utils::{self, ensure_clean_dir, ensure_dir_exists},
 };
 
@@ -246,7 +246,7 @@ pub fn daemon() -> Result<()> {
 pub fn install() -> Result<()> {
     ensure_dir_exists(defs::ADB_DIR)?;
     std::fs::copy("/proc/self/exe", defs::DAEMON_PATH)?;
-
+    restorecon::setcon(defs::DAEMON_PATH, restorecon::ADB_CON)?;
     // install binary assets
     assets::ensure_binaries().with_context(|| "Failed to extract assets")?;