[Bug] Fix the Coolix fan-only mode in IRac class. #778

Job	Run time
Gen_Matrix	4s
Build_Example (.)	2m 24s
Build_Example (./examples/IRGCSendDemo)	1m 1s
Build_Example (./examples/JVCPanasonicSendDemo)	56s
Build_Example (./examples/IRsendDemo)	40s
Build_Example (./examples/DumbIRRepeater)	40s
Build_Example (./examples/TurnOnArgoAC)	42s
Build_Example (./examples/TurnOnGreeAC)	51s
Build_Example (./examples/SmartIRRepeater)	1m 4s
Build_Example (./examples/IRrecvDumpV2)	1m 58s
Build_Example (./examples/IRMQTTServer)	1m 59s
Build_Example (./examples/BlynkIrRemote)	59s
Build_Example (./examples/CommonAcControl)	1m 0s
Build_Example (./examples/IRrecvDump)	40s
Build_Example (./examples/IRrecvDumpV3)	1m 55s
Build_Example (./examples/TurnOnMitsubishiAC)	45s
Build_Example (./examples/ControlSamsungAC)	56s
Build_Example (./examples/TurnOnFujitsuAC)	55s
Build_Example (./examples/TurnOnPanasonicAC)	54s
Build_Example (./examples/IRGCTCPServer)	48s
Build_Example (./examples/IRrecvDemo)	47s
Build_Example (./examples/TurnOnDaikinAC)	46s
Build_Example (./examples/LGACSend)	48s
Build_Example (./examples/TurnOnMitsubishiHeavyAc)	40s
Build_Example (./examples/IRServer)	57s
Build_Example (./examples/IRsendProntoDemo)	41s
Build_Example (./examples/TurnOnTrotecAC)	39s
Build_Example (./examples/Web-AC-control)	1m 2s
Build_Example (./examples/TurnOnKelvinatorAC)	53s
Build_Example (./examples/TurnOnToshibaAC)	44s
Build_Examples	2s
	29m 10s

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