ARM: dts: bcmbca: bcm63178: fix interrupt controller node

Add the missing gic registers and interrupts property to the gic node.

Fixes: fc85b7e6 ("ARM: dts: add dts files for bcmbca soc 63178")
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Link: https://lore.kernel.org/r/20220801194448.29363-3-william.zhang@broadcom.com


Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>