brcm63xx: convert to irq domain

Add irq-domain aware irqchip drivers for the irq controllers of bcm63xx
and switch to use them.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43454 3c298f89-4303-0410-b956-a3cf2f4a3e73
brcm63xx: dtsi: add missing properties to cpu nodes

Mark them as cpu nodes and add the addresses.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43455 3c298f89-4303-0410-b956-a3cf2f4a3e73
brcm63xx: dtsi: add missing ranges properity to ubus nodes

Allows nodes behind it to be mapped.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43456 3c298f89-4303-0410-b956-a3cf2f4a3e73
brcm63xx: register interrupt-controllers through DT when possible

Add the required nodes for the interrupt controllers and register
them through DT when a DTB is present.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43457 3c298f89-4303-0410-b956-a3cf2f4a3e73