[AVR32] Implement intc_get_pending()

intc_get_pending() returns a bitmask with pending interrupts in a
interrupt controller group (irq). This is used by the upcoming
oprofile implementation for avr32 and may also be useful for chained
interrupt controller drivers.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
1 file changed