When parsing a devargs, try to parse using the global device syntax
first. Fallback on legacy syntax on error.
Example of new global device syntax:
-a bus=pci,addr=82:00.0/class=eth/driver=mlx5,dv_flow_en=1
Signed-off-by: Xueming Li <xuemingl@nvidia.com>
Reviewed-by: Gaetan Rivet <grive@u256.net>