disable dl_iterate_phdr for uclibc (#396)

Co-authored-by: Yannick Koehler <ykoehler@arubanetworks.com>

Author: ykoehler

src/symbolize/gimli.rs

@@ -358,9 +358,12 @@ cfg_if::cfg_if! {
                 bias: slide,
             })
         }
-    } else if #[cfg(any(
-        target_os = "linux",
-        target_os = "fuchsia",
+    } else if #[cfg(all(
+        any(
+            target_os = "linux",
+            target_os = "fuchsia",
+        ),
+        not(target_env = "uclibc"),
     ))] {
         // Other Unix (e.g. Linux) platforms use ELF as an object file format
         // and typically implement an API called `dl_iterate_phdr` to load