update libeap unused parameter warnings

diff --git a/libeap b/libeap
index ef6637b..e586e8f 160000 (submodule)
--- a/libeap
+++ b/libeap
@@ -1 +1 @@
-Subproject commit ef6637b73a24dfa9746deff1e5780ac808ecbde9
+Subproject commit e586e8f88968dae297e9f013f67518d21b1f12e0