Run Android tests in the initial frame

Run Android tests in the initial frame

* test/infra/android/early-init.el: New file.

* test/infra/android/test-controller.el (ats-connect): Upload
`early-init.el' to the staging directory and configure that
directory as the Emacs instance's initialization directory.
(ats-run-test): Always append to the test buffer.  Execute tests
within terminal-frame.
(ats-run-all-tests): Gracefully respond to errors.
(ats-cmd-error): New function.
(ats-execute-tests-batch): Accept a number of command line
arguments.

(cherry picked from commit a8988ce80004af57f3741dc059c5a97cb83dca64)