i586_unknown_netbsd: use inline stack probes

This is one of the last two targets still using "call" stack probes.

Author: erikdesjardins

compiler/rustc_target/src/spec/targets/i586_unknown_netbsd.rs

@@ -4,7 +4,7 @@ pub fn target() -> Target {
     let mut base = base::netbsd::opts();
     base.cpu = "pentium".into();
     base.max_atomic_width = Some(64);
-    base.stack_probes = StackProbeType::Call;
+    base.stack_probes = StackProbeType::Inline;
 
     Target {
         llvm_target: "i586-unknown-netbsdelf".into(),