Increase attempts to start AudioRecord

Making the shell app foreground (specific for Android 11) may take more
than 300ms on some devices, so increase the number of attempts from 3 to
5 (separated by 100ms).

Fixes #4147 <https://github.com/Genymobile/scrcpy/issues/4147>
Refs #3796 <https://github.com/Genymobile/scrcpy/issues/3796>
Refs 02f4ff7534649153d6f87b05a0757431a2d0ee5f