samples: logging: Add v2 logging support for sys-t sample.

Adding #ifndef CONFIG_LOG2 condition for log_msg_ids and
log_string_sync in sys-t sample. Extending support for
v2 logging in sys-t sample.

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