Zephyr benchmark timing with userspace, frdm_k64f, v1.13.0-rc1

# Run userspace-enabled benchmark timing tests:
$ sanitycheck --device-testing --device-serial /dev/ttyACM0 -p frdm_k64f --test tests/benchmarks/timing_info/benchmark.timing.userspace

# Print the results
$ cat sanity-out/frdm_k64f/tests/benchmarks/timing_info/benchmark.timing.userspace/handler.log
***** Booting Zephyr OS v1.13.0-rc1 *****
starting test - Time Measurement
Timing Results: Clock Frequency: 120 MHz
Context switch                               : 860 cycles ,  7166 ns
Interrupt latency                            :   0 cycles ,     0 ns
Tick overhead                                : 166 cycles ,  1383 ns
Thread Creation                              : 845 cycles ,  7041 ns
Thread cancel                                : 636 cycles ,  5300 ns
Thread abort                                 :1565 cycles , 13041 ns
Thread Suspend                               :1215 cycles , 10125 ns
Thread Resume                                :1210 cycles , 10083 ns
Thread Yield                                 :1138 cycles ,  9483 ns
Thread Sleep                                 :1210 cycles , 10083 ns
Heap Malloc                                  : 848 cycles ,  7066 ns
Heap Free                                    : 772 cycles ,  6433 ns
Semaphore Take with context switch           :1350 cycles , 11250 ns
Semaphore Give with context switch           :1360 cycles , 11333 ns
Semaphore Take without context switch        : 108 cycles ,   900 ns
Semaphore Give without context switch        : 215 cycles ,  1791 ns
Mutex lock                                   : 243 cycles ,  2025 ns
Mutex unlock                                 : 326 cycles ,  2716 ns
Message Queue Put with context switch        :1455 cycles , 12125 ns
Message Queue Put without context switch     : 310 cycles ,  2583 ns
Message Queue get with context switch        :1560 cycles , 13000 ns
Message Queue get without context switch     : 305 cycles ,  2541 ns
MailBox synchronous put                      :1600 cycles , 13333 ns
MailBox synchronous get                      :1560 cycles , 13000 ns
MailBox asynchronous put                     : 420 cycles ,  3500 ns
MailBox get without context switch           : 710 cycles ,  5916 ns
Drop to user mode                            :1745 cycles , 14541 ns
User thread Creation                         :2504 cycles , 20866 ns
Syscall overhead                             : 178 cycles ,  1483 ns
Validation overhead k object init            : 301 cycles ,  2508 ns
Validation overhead k object permission      : 285 cycles ,  2375 ns
Timing Measurement  finished
PASS - main
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PROJECT EXECUTION SUCCESSFUL