net/bnxt: restore dependency on kernel modules

net/bnxt: restore dependency on kernel modules

During a large refactoring sweep for 21.11, a previous commit
removed the dependency the bnxt driver had on Linux virtual
bus drivers, such as vfio-pci. This breaks port detection.

This patch adds the kmod dependency back as it was.

Fixes: 295968d17407 ("ethdev: add namespace")
Cc: stable@dpdk.org
Signed-off-by: Geoffrey Le Gourriérec <geoffrey.le_gourrierec@6wind.com>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>