forked from Imagelibrary/rtems
* shared/irq/irq.h, shared/irq/irq.c, shared/irq/irq_init.c, shared/irq/irq_supp.h (added): Removed 'is_processor_irq()' from irq.c; the BSP routines BSP_enable_irq_at_pic()/BSP_disable_irq_at_pic() are required to ignore processor irqs anyways. Removed all BSP-defined constants from irq.c. This makes irq.c (almost) binary-compatible among BSPs (ultimate goal is making 'shared' a library). Added a header (irq_supp.h) defining the interface between the generic interrupt manager (irq.c) and the routines it requires to be supplied by the BSP (eventually, these should go into rtems/irq.h).