hw/arm/aspeed: Add missing Kconfig dependencies on optional components

Add missing Kconfig optional dependencies to avoid the following runtime error: qemu-system-aarch64: -device loader,force-raw=on,addr=0x400000000,file=./u-boot.bin: 'loader' is not a valid device model name qemu-system-aarch64: -device e1000e,netdev=net1,bus=pcie.2: 'e1000e' is not a valid device model name Signed-off-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Link: https://lore.kernel.org/qemu-devel/20260709164103.37614-4-philmd@oss.qualcomm.com Signed-off-by: Cédric Le Goater <clg@redhat.com>