log_Switch_format test has incomplete handler logs on frdm_k64f
and also a false positive for logging.log_switch_format.immediate
testcase due to harness console which does not wait for
completion of ztest testcases to indicate pass/fail status to twister.
Fixes#46368
Signed-off-by: Aastha Grover <aastha.grover@intel.com>
Adding testcases for switching of logging formats at runtime.
Includes testing for log_backend_format_set,
log_format_set_all_active_backends & log_format_func_t_get
routines.
Signed-off-by: Aastha Grover <aastha.grover@intel.com>