tools(tmux): fix script argument
tools(tmux): fix script argument

Correctly drops tmux panel into an adb shell.
Does not perform `basename` on non-file scripts

Change-Id: If0139091a7d532712c6a86cc2aaf860911fb492f
google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto