[LLDB] Make remote-android local ports configurable

The local ports for `platform connect` and `attach` were always random, this allows the user to configure them.
This is useful for debugging a truly remote android (when the android in question is connected to a remote server).

There is a lengthier discussion on github - https://github.com/llvm/llvm-project/issues/58114

Reviewed By: clayborg

Differential Revision: https://reviews.llvm.org/D136465