Add AArch64 JIT recompiler to wxWidgets UI.

This also fixes an issue where it would show the ARMv7 JIT recompiler on AArch64, also the issue of showing the now non-existant ARM JITIL.
Also fixes an issue where it would show the x86 JIT recompilers on a non ARM platform.
Merge pull request #1271 from Sonicadvance1/AArch64-JIT-UI

Add AArch64 JIT recompiler to wxWidgets UI.