Allwinner DT changes for 4.21
This is a quite big pull request this time, with a huge number of changes
(and patches) due to us fixing the vast majority of the DTC warnings our DT
had.
We also have a bunch of other good, more meaningful, changes:
- Support for the new Allwinner T3 (rebranded R40) and f1c100s (armv5)
SoCs
- AXP803 PMIC AC Power supply support
- Rework of the oscillators tree
- Two new boards: the t3-cqa3t-bv3 and Lichee Pi Nano
Plus a few enhancements here and there.