Auto merge of #115312 - hermitcore:hermit-is_interrupted, r=thomcc

fix(sys/hermit): add is_interrupted

https://github.com/rust-lang/rust/pull/115228 broke compilation for Hermit by not adding a Hermit implementation of is_interrupted.

library/std/src/sys/hermit/mod.rs

@@ -129,6 +129,11 @@ pub unsafe fn cleanup() {}
     abi::exit(result);
 }
 
+#[inline]
+pub(crate) fn is_interrupted(errno: i32) -> bool {
+    errno == abi::errno::EINTR
+}
+
 pub fn decode_error_kind(errno: i32) -> ErrorKind {
     match errno {
         abi::errno::EACCES => ErrorKind::PermissionDenied,