ASACORE-682 Fix ping reply codes.

When a name has not been requested, ping to a locally connected node should return ER_ALLJOYN_PING_REPLY_UNREACHABLE.

Change-Id: I5244f117f90cb215dded5e80eb193b81b6a2a2cd
Signed-off-by: Sheshambika Venkateshwaran <sheshamb@qce.qualcomm.com>
Merge "ASACORE-682 Fix ping reply codes." into RB14.12