Zi Fan

Results 2 issues of Zi Fan

I noticed one example using older version of Triton API as shown below: https://github.com/quarkslab/arybo/blob/89d9a4266fa51c1a560f6c4a66f65d1ffde5f093/examples/triton_ida_patch.py#L34 According to JonathanSalwan/Triton#689, `buildSymbolicRegister` has been renamed to `getRegisterAst`. Other examples might be affected this.

Fix some minor errors when building and running Trusty with GDB enabled on QEMU. Also, updated the README.md to include missing dependencies when building the Trusty's QEMU project.