hw/riscv/virt.c: rename aplic nodename to 'interrupt-controller'

hw/riscv/virt.c: rename aplic nodename to 'interrupt-controller'

The correct name of the aplic controller node, as per Linux kernel DT
docs [1], is 'interrupt-controller@addr'.

[1] Documentation/devicetree/bindings/interrupt-controller/riscv,aplic.yaml

Reported-by: Conor Dooley <conor@kernel.org>
Fixes: e6faee65855b ("hw/riscv: virt: Add optional AIA APLIC support to virt machine")
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240531202759.911601-4-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>