- irq_domain_add_simple() can't be used on bmips since interrupts aren't
hardcoded with specific offsets for internal and external as opposed to
bcm63xx. This is needed to avoid collisions with other interrupts.
- remove unused bcm63xx-specific code.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
c3549b9319