ASACORE-1029: Do not assert based on incoming data

If the RCV segment header contains incoherent sequence fields,
return error and close the offending connection.

Change-Id: I55ae92a6b6cafdcc6ab1ade3ac5cb20a9c5d1819
Signed-off-by: Inga Stotland <ingas@qce.qualcomm.com>