portapack h2+ v3.4 pcb support wm8731 portapack.cpp change to support codec

portapach h2+ v3.4 pcb support wm8731

change portapack.cpp to support wm8731 codec replace ak4951

https://github.com/eried/portapack-mayhem/blob/next/firmware/application/portapack.cpp

static const portapack::cpld::Config& portapack_cpld_config() {

return (portapack_model() == PortaPackModel::R2_20170522)
    ? portapack::cpld::rev_20170522::config
    : portapack::cpld::rev_20170522::config    //2. Change 20150901 to 20170522 support H1/H2 TFT  20150901 cpld is old tft driver
    ;

}

Backlight* backlight() {

return (portapack_model() == PortaPackModel::R2_20170522)
    ? static_cast<portapack::Backlight*>(&backlight_cat4004)
    : static_cast<portapack::Backlight*>(&backlight_cat4004);  //1.Change ON_OFF to cat 4004

}

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