forked from Imagelibrary/rtems
* Makefile.am, irq/irq.c, irq/irq.h, irq/irq_init.c: use new exception/irq support from libcpu/powerpc/new-exceptions/bspsupport rather than borrowing from ../shared/vectors ../shared/irq
* Makefile.am, irq/irq.c, irq/irq.h, irq/irq_init.c: use new exception/irq support from libcpu/powerpc/new-exceptions/bspsupport rather than borrowing from ../shared/vectors ../shared/irq