[PATCH v2 2/2] ppc/pnv: Fix PCI_EXPRESS dependency

[Laurent Vivier <lvivier@redhat.com>]

When PHB4 bridge has been added, the dependencies to PCIE_PORT has been
added to XIVE_SPAPR and indirectly to PSERIES.
The build of the PowerNV machine is fine while we also build the PSERIES
machine.
If we disable the PSERIES machine, the PowerNV build fails because the
PCI Express files are not built:

/usr/bin/ld: hw/ppc/pnv.o: in function `pnv_chip_power8_pic_print_info':
.../hw/ppc/pnv.c:623: undefined reference to `pnv_phb3_msi_pic_print_info'
/usr/bin/ld: hw/ppc/pnv.o: in function `pnv_chip_power9_pic_print_info':
.../hw/ppc/pnv.c:639: undefined reference to `pnv_phb4_pic_print_info'
/usr/bin/ld: ../hw/usb/hcd-ehci-pci.o: in function `usb_ehci_pci_write_config':
.../hw/usb/hcd-ehci-pci.c:129: undefined reference to `pci_default_write_config'
/usr/bin/ld: ../hw/usb/hcd-ehci-pci.o: in function `usb_ehci_pci_realize':
.../hw/usb/hcd-ehci-pci.c:68: undefined reference to `pci_allocate_irq'
/usr/bin/ld: .../hw/usb/hcd-ehci-pci.c:72: undefined reference to `pci_register_bar'
/usr/bin/ld: ../hw/usb/hcd-ehci-pci.o:(.data.rel+0x50): undefined reference to `vmstate_pci_device'

This patch fixes the problem by adding needed dependencies to POWERNV.

Fixes: 4f9924c4d4cf ("ppc/pnv: Add models for POWER9 PHB4 PCIe Host bridge")
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
---

Notes:
    v2: remove PCI already selected by PCI_EXPRESS
        remove PCIE_PORT, set by default to yes with PCI_DEVICES

 hw/ppc/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/ppc/Kconfig b/hw/ppc/Kconfig
index 354828bf132f..dd86e664d215 100644
--- a/hw/ppc/Kconfig
+++ b/hw/ppc/Kconfig
@@ -29,6 +29,8 @@ config POWERNV
     select XICS
     select XIVE
     select FDT_PPC
+    select PCI_EXPRESS
+    select MSI_NONBROKEN
 
 config PPC405
     bool
@@ -135,8 +137,6 @@ config XIVE_SPAPR
     default y
     depends on PSERIES
     select XIVE
-    select PCI
-    select PCIE_PORT
 
 config XIVE_KVM
     bool
-- 
2.24.1