fixup! std: add platform support for hexagon-unknown-qurt

Fix unsupported import for non-unix targets (e.g. wasm32-wasip1).

On qurt, `crate::sys::unsupported` is a module (from pal::unix), but
on other platforms using the unsupported process/net modules (e.g. wasm),
it's a function re-exported from pal. Use conditional imports to handle
both cases.

Author: androm3da

library/std/src/sys/net/connection/unsupported.rs

@@ -1,6 +1,9 @@
 use crate::fmt;
 use crate::io::{self, BorrowedCursor, IoSlice, IoSliceMut};
 use crate::net::{Ipv4Addr, Ipv6Addr, Shutdown, SocketAddr, ToSocketAddrs};
+#[cfg(not(target_os = "qurt"))]
+use crate::sys::unsupported;
+#[cfg(target_os = "qurt")]
 use crate::sys::unsupported::unsupported;
 use crate::time::Duration;
 

library/std/src/sys/process/unsupported.rs

@@ -5,6 +5,9 @@ use crate::num::NonZero;
 use crate::path::Path;
 use crate::process::StdioPipes;
 use crate::sys::fs::File;
+#[cfg(not(target_os = "qurt"))]
+use crate::sys::unsupported;
+#[cfg(target_os = "qurt")]
 use crate::sys::unsupported::unsupported;
 use crate::{fmt, io};