soc: nxp_s32: generalize pinctrl header for all family

Unify the pinctrl_soc.h header for all the NXP S32 family by using
the HAL macros that expose the features supported on specific
devices. This approach still need a different binding for each device to
expose in DT different properties and allowed values.

Signed-off-by: Manuel Argüelles <manuel.arguelles@nxp.com>