Check if we are a binfmt_misc application, change execve behaviour
If we were executed through binfmt_misc, then we should change behaviour of execve.
Passing arguments to FEXLoader through execve has a chance of breaking from my testing of /bin/sh based applications on steam.

- Stop passing arguments to FEXLoader from execve
  - Requires better configuration
- If we are the binfmt_misc interpreter and the application getting called in execve would call us directly, remove FEXLoader from the launch arguments.