update pin control implementation to use offsets for pin registers
instead of pin/port combination, to permit additional flexibility for
lpc devices with non contiguous register layouts. Update LPC55s69 pin
control names to align with newly generated pin control header.
This change also requires an update to the NXP HAL to use the new pin
control headers with offsets.
Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
Add lpc iocon pinctrl driver. Driver handles IOCON clock initialization as
well as IOCON pin configuration
Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
