logging: Add MIPI sys-t support for v2 logging subsystem.

Adding functions log_output_msg2_syst_process and hexdump2_print
to support v2 logging subsystem.

Updates west.yml to pick up a new version of the MIPI sys-t library that
supports vprintf.

Signed-off-by: Aastha Grover <aastha.grover@intel.com>
Signed-off-by: Maureen Helm <maureen.helm@intel.com>
6 files changed