MIPS: Add board config for virt board

CONFIG_COMMON_CLK=y

CONFIG_GOLDFISH=y

CONFIG_GOLDFISH_PIC=y

CONFIG_PCI=y

CONFIG_PCI_MSI=y

CONFIG_PCI_HOST_GENERIC=y

CONFIG_POWER_RESET=y

CONFIG_POWER_RESET_SYSCON=y

CONFIG_POWER_RESET_SYSCON_POWEROFF=y

CONFIG_SYSCON_REBOOT_MODE=y

CONFIG_RTC_CLASS=y

CONFIG_RTC_DRV_GOLDFISH=y

CONFIG_SERIAL_8250=y

CONFIG_SERIAL_8250_CONSOLE=y

CONFIG_SERIAL_OF_PLATFORM=y

CONFIG_MTD=y

CONFIG_MTD_CFI=y

CONFIG_USB=y

CONFIG_USB_EHCI_HCD=y

CONFIG_USB_OHCI_HCD=y

CONFIG_USB_XHCI_HCD=y

CONFIG_VIRTIO_CONSOLE=y

CONFIG_VIRTIO_PCI=y

CONFIG_VIRTIO_MMIO=y

CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y

CONFIG_VIRTIO_BALLOON=y

CONFIG_VIRTIO_BLK=y

CONFIG_VIRTIO_NET=y

CONFIG_NET_9P=y

CONFIG_NET_9P_VIRTIO=y