* pin_repository: provide readable pin names in error cases
* io_pins: remove getBrain_pin_eExt
We have getBrain_pin_eExt in io_pins.cpp and hwPortname in
pin_repository.cpp.
First uses auto-generated enums, second one uses runtime data to
provide name of hw pin.
Removing first saves us about 2K of flash couse big auto-generated
switch with pin names no more used by anyone and gets optimized out.
* gpios: mc33972: CS pin is now requested at smart_gpios.pcc
* getSpiDevice: support SPI4
* smart_gpios.cpp: startSmartCsPins set CSs to inactive state
OutputPin:initPin initializes pin with false value. This is active
state for SPI Chip Selects. Set to 1 to deselect all chips.
1b19a36b9e