Fixed a few day one bugs:
- Heartbeat status changes are not properly passed to VIM from
GuestAgent.
- Heartbeat reporting state is not properly updated in guestServer when
guest heartbeat is enabled.
These bugs could cause heartbeat status/states mismatch among
VIM-guestAgent-guestServer and result in intermittent issues.
Change-Id: I2198760345821fa4af0437af252e3ec6a39978d8
Signed-off-by: Jack Ding <jack.ding@windriver.com>