* cdl/hal_arm_at91.cdl: * src/at91_misc.c: * include/var_io.h: Support FIQ as a high priority interrupt using the normal mechanism. This is controlled by the CDL option CYGHWR_HAL_ARM_AT91_FIQ and uses the interrupt number CYGHWR_HAL_ARM_AT91_FIQ which is common to all platforms using this HAL variant.