[PCMFlash] Module 90 China DCM6.2AP/DCM7.1AP

Сhina DCM6.2AP

Great Wall/Haval 2.0L TD (DCM6.2AP)
JAC 2.0L TD (DCM6.2AP)
Great Wall/Haval 2.0L TD (DCM7.1AP)
Dongfeng 2.3L TD (DCM7.1AP)
Trucks (DCM6.24) [Test] Qingling/Isuzu 3.0L TD (DCM6.2AP)
Qingling/Isuzu 3.0L TD (DCM7.1AP)

Reading, writing, checksum correction.