vfio/pci: demote hiding ecap messages to debug level

Seeing a burst of messages like this:

    vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x19@0x1d0
    vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x25@0x200
    vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x26@0x210
    vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x27@0x250
    vfio-pci 0000:98:00.1: vfio_ecap_init: hiding ecap 0x25@0x200
    vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x19@0x1d0
    vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x25@0x200
    vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x26@0x210
    vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x27@0x250
    vfio-pci 0000:b1:00.1: vfio_ecap_init: hiding ecap 0x25@0x200

is of little to no value for an ordinary user.

Hence, use pci_dbg() instead of pci_info().

Signed-off-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Acked-by: Cédric Le Goater <clg@redhat.com>
Tested-by: YangHang Liu <yanghliu@redhat.com>
Link: https://lore.kernel.org/r/20230504131654.24922-1-oleksandr@natalenko.name


Signed-off-by: Alex Williamson <alex.williamson@redhat.com>