Fix Android emulator in macOS Big Sur

gistfile1.txt

First create an xml file anywhere named entitlements.xml with this content:

```
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>com.apple.security.hypervisor</key>
    <true/>
</dict>
</plist>
```

Then sign the qemu binary with it:
```
codesign -s - --entitlements entitlements.xml --force /Users/rafaelsm/Library/Android/sdk/emulator/qemu/darwin-x86_64/qemu-system-x86_64
```

See:
https://www.arthurkoziel.com/qemu-on-macos-big-sur/
https://stackoverflow.com/questions/64642062/apple-hypervisor-is-completely-broken-on-macos-big-sur-beta-11-0-1
https://www.reddit.com/r/VFIO/comments/kdhgni/qemu_hvf_support_for_mac_os_x_bug_sur_hv_error/
https://stackoverflow.com/questions/66455173/android-emulator-30-4-5-not-working-on-macos