inmates: pci: allow pci_find_device to discover multiple devices

Systems can have more than one PCI device with the same vendor/device
id pair. Change the discovery helper to allow searching for more than
just the first bdf.

Signed-off-by: Henning Schild <henning.schild@siemens.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
inmates: pci: add msix support to inmate lib

Add basic MSI-X support to inmate PCI library.

Signed-off-by: Henning Schild <henning.schild@siemens.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
tooling: Fix parallel kbuild

The define decouples the calling make from the recursively called one.
Fix it by prefixing the latter with "+".

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
tooling: Do not print directory names during build

Just to reduce verbosity.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>