stub sys_clock_nanosleep

# Conflicts:
#	src/arch/arm64/exceptions/syscall.rs

src/process/sleep.rs

@@ -9,3 +9,15 @@ pub async fn sys_nanosleep(rqtp: TUA<TimeSpec>, _rmtp: TUA<TimeSpec>) -> Result<
 
     Ok(0)
 }
+
+pub async fn sys_clock_nanosleep(
+    _clock_id: i32,
+    rqtp: TUA<TimeSpec>,
+    _rmtp: TUA<TimeSpec>,
+) -> Result<usize> {
+    let timespec = TimeSpec::copy_from_user(rqtp).await?;
+
+    sleep(timespec.into()).await;
+
+    Ok(0)
+}