arm64: defconfig: Visconti: Enable PCIe host controller

Enable Visconti's PCIe host controller in the ARM64 defconfig.
Signed-off-by: NNobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Link: https://lore.kernel.org/r/20210907042340.1525711-1-nobuhiro1.iwamatsu@toshiba.co.jpSigned-off-by: NNobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>

arch/arm64/configs/defconfig

@@ -237,6 +237,7 @@ CONFIG_PCIE_ARMADA_8K=y
 CONFIG_PCIE_KIRIN=y
 CONFIG_PCIE_HISI_STB=y
 CONFIG_PCIE_TEGRA194_HOST=m
+CONFIG_PCIE_VISCONTI_HOST=y
 CONFIG_PCI_ENDPOINT=y
 CONFIG_PCI_ENDPOINT_CONFIGFS=y
 CONFIG_PCI_EPF_TEST=m