There are a bunch of cases you might want some pins not exposed.
Eg.
* Reading say 8 bit data and outputting the top 5 bits, discarding the rest by not mapping those data pins to output pins
* Not using hsync/vsync because sync data is embedded within the data bits for more timing flexibility (eg. interlacing).
* Using the LCD module as a high speed parallel data output bus, with no need for sync/control pins.
Removing this validation makes these cases work.
Merges https://github.com/espressif/esp-idf/pull/13103
There's two GDMA groups on ESP32P4, one is connected to AHB bus,
and another one is connected AXI bus.
We now have two seperate APIs for allocating DMA channels,
depends on the bus type.
