Have the “Reset Connection” Menu always available.

Have the “Reset Connection” Menu always available, even when we
believe there is no connection. Selecting “Reset Connection” will kill
both any running emulator and adb, so it is useful to help reset the
state of things when the user isn’t quite sure what state they are in.

Change-Id: I7a8f099f792eb2090de1c594c7754fecaa2a4df7