Add  sample time for each ADC used channel.
Add sample time for each ADC channel, and number of channels is setup on adc_interface_def.h.
This will add definitions for platform ADC
Adapt the example project to new SDK changes.
Add sample time for each ADC channel.
Remove the DMA data transfer, the DMA is useless on this configuration because the function wait to TWI to send the stop condition,

the speed and time consumed by this function is the same with or without the DMA, this will release DMA channels to be used on other functions more important.
Add request functions by MMCSD API file to avoid compiler warning undeclared functions.
Remove the DMA data transfer, the DMA is useless on this configuration because the function wait to TWI to send the stop condition,

the speed and time consumed by this function is the same with or without the DMA, this will release DMA channels to be used on other functions more important.
Remove static count variables because the compiler can't export static variables to other files.