hsa: fix vpp_echo session close

hsa: fix vpp_echo session close

- Convert asserts in vpp_echo to conditional checks
- Refactor error logging for session creation/deletion
- Fix session close anomalies
- Fix ECHO_* macros
- Add rx/tx results different cmdline options to
  specify pass when counters are different
- Update close tests to send more than the fifo
  sizes of data
- Specify rx/tx results diff options for early
  close tests
- Set listen session state to closed on handling
  unlisten reply

Type: fix

Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
Change-Id: I9d0075fcb18e20829f420da104d69523897b0552