PCI: Remove host driver Kconfig selection of CONFIG_PCIEPORTBUS

Host bridge drivers do not use the portdrv interfaces (struct pcie_device,
struct pcie_port_service_driver, pcie_port_service_register(), etc), and
they should not select CONFIG_PCIEPORTBUS.

If users need the portdrv services, they can select CONFIG_PCIEPORTBUS just
like all other PCI users.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

drivers/pci/dwc/Kconfig

@@ -68,7 +68,6 @@ config PCI_EXYNOS
 	depends on PCI
 	depends on SOC_EXYNOS5440
 	depends on PCI_MSI_IRQ_DOMAIN
-	select PCIEPORTBUS
 	select PCIE_DW_HOST
 
 config PCI_IMX6
@@ -76,7 +75,6 @@ config PCI_IMX6
 	depends on PCI
 	depends on SOC_IMX6Q
 	depends on PCI_MSI_IRQ_DOMAIN
-	select PCIEPORTBUS
 	select PCIE_DW_HOST
 
 config PCIE_SPEAR13XX
@@ -84,7 +82,6 @@ config PCIE_SPEAR13XX
 	depends on PCI
 	depends on ARCH_SPEAR13XX
 	depends on PCI_MSI_IRQ_DOMAIN
-	select PCIEPORTBUS
 	select PCIE_DW_HOST
 	help
 	  Say Y here if you want PCIe support on SPEAr13XX SoCs.
@@ -94,7 +91,6 @@ config PCI_KEYSTONE
 	depends on PCI
 	depends on ARCH_KEYSTONE
 	depends on PCI_MSI_IRQ_DOMAIN
-	select PCIEPORTBUS
 	select PCIE_DW_HOST
 	help
 	  Say Y here if you want to enable PCI controller support on Keystone
@@ -117,7 +113,6 @@ config PCI_HISI
 	bool "HiSilicon Hip05 and Hip06 SoCs PCIe controllers"
 	depends on PCI
 	depends on PCI_MSI_IRQ_DOMAIN
-	select PCIEPORTBUS
 	select PCIE_DW_HOST
 	select PCI_HOST_COMMON
 	help
@@ -129,7 +124,6 @@ config PCIE_QCOM
 	depends on PCI
 	depends on ARCH_QCOM && OF
 	depends on PCI_MSI_IRQ_DOMAIN
-	select PCIEPORTBUS
 	select PCIE_DW_HOST
 	help
 	  Say Y here to enable PCIe controller support on Qualcomm SoCs. The
@@ -141,7 +135,6 @@ config PCIE_ARMADA_8K
 	depends on PCI
 	depends on ARCH_MVEBU
 	depends on PCI_MSI_IRQ_DOMAIN
-	select PCIEPORTBUS
 	select PCIE_DW_HOST
 	help
 	  Say Y here if you want to enable PCIe controller support on
@@ -156,7 +149,6 @@ config PCIE_ARTPEC6_HOST
 	bool "Axis ARTPEC-6 PCIe controller Host Mode"
 	depends on MACH_ARTPEC6
 	depends on PCI && PCI_MSI_IRQ_DOMAIN
-	select PCIEPORTBUS
 	select PCIE_DW_HOST
 	select PCIE_ARTPEC6
 	help
@@ -178,7 +170,6 @@ config PCIE_KIRIN
 	bool "HiSilicon Kirin series SoCs PCIe controllers"
 	depends on PCI_MSI_IRQ_DOMAIN
 	depends on PCI
-	select PCIEPORTBUS
 	select PCIE_DW_HOST
 	help
 	  Say Y here if you want PCIe controller support
@@ -189,7 +180,6 @@ config PCIE_HISI_STB
 	depends on ARCH_HISI
 	depends on PCI
 	depends on PCI_MSI_IRQ_DOMAIN
-	select PCIEPORTBUS
 	select PCIE_DW_HOST
 	help
           Say Y here if you want PCIe controller support on HiSilicon STB SoCs

drivers/pci/host/Kconfig

@@ -83,7 +83,6 @@ config PCI_XGENE
 	bool "X-Gene PCIe controller"
 	depends on ARM64
 	depends on OF || (ACPI && PCI_QUIRKS)
-	select PCIEPORTBUS
 	help
 	  Say Y here if you want internal PCI support on APM X-Gene SoC.
 	  There are 5 internal PCIe ports available. Each port is GEN3 capable
@@ -194,7 +193,6 @@ config PCIE_MEDIATEK
 	depends on (ARM || ARM64) && (ARCH_MEDIATEK || COMPILE_TEST)
 	depends on OF
 	depends on PCI
-	select PCIEPORTBUS
 	help
 	  Say Y here if you want to enable PCIe controller support on
 	  MediaTek SoCs.