HW CI repeatable error

[rusefillc]

Happens maybe 1 in 20/30 builds but keeps happening!

    [junit] I 210112 144706.011 [communication executor1] MessagesCentral - postMessage EngineState: WARNING: re-adding element into event_queue
    [junit] I 210112 144716.312 [communication executor1] MessagesCentral - postMessage EngineState: WARNING: Can't connect or mount MMC/SD
    [junit] ------------- ---------------- ---------------
    [junit] 
    [junit] Testcase: testVW took 51,119 sec
    [junit] Testcase: testV12 took 91,149 sec
    [junit] 	Caused an ERROR
    [junit] rpm change did not happen: 60, actual 123.0
    [junit] java.lang.IllegalStateException: rpm change did not happen: 60, actual 123.0
    [junit] 	at com.rusefi.IoUtil.changeRpm(IoUtil.java:96)
    [junit] 	at com.rusefi.functional_tests.EcuTestHelper.assertRpmDoesNotJump(EcuTestHelper.java:43)
    [junit] 	at com.rusefi.HighRevTest.testV12(HighRevTest.java:29)

See #2207

[rusefillc]

replacing this one with #4772