Reset reconfig and suspend flags before connecting

When turning a carkit OFF during music playback, the flags are set to
false. After turning it back ON and re-connecting with the carkit, the
flags are not reset. This causes a potential disconnect when the pause
button is pushed on the carkit.

Bug: 28852454
Change-Id: If51c9b0a9d4180d5d3ca74963aa8186dd3f19e96