fix elf path

fuzzers/wcet_qemu_sys/src/showmap.rs

@@ -182,7 +182,7 @@ fn fuzz(
     let emu = Emulator::new(&mut args, &mut env);
     //=========== Analyze the binary to find the target function address
     let mut elf_buffer = Vec::new();
-    let bin_path=Path::new("./RTOSDemo.axf");
+    let bin_path=kernel;
     let elf = EasyElf::from_file(bin_path, &mut elf_buffer)?;
 
     let test_one_input_ptr = elf