* LCD: check if settings are valid on each access
* Lada Kalina: remove duplicate code
All LCD pins are set to GPIO_UNASSIGNED in disableLCD()
* Remove duplicate code
* We still need to know when invalid gpio is used...
This reverts commit c17775231a.
* gpios: isBrainPinValid helper
* LCD HD44780: do not touch pins if DM_NONE or invalid gpio
* Fix isEnabled checks for GPS and Joystick
* LCD HD44780: writePad use this method wider