amd-xgbe: Adjust for zero-based traffic class count
amd-xgbe: Adjust for zero-based traffic class count

The number of traffic classes reported by the hardware is zero-based
so increment the value returned to get an actual count.

Signed-off-by: Tom Lendacky <bcbe2d8614c98cf419bfc4320d4a7a260d53de8f@amd.com>
Signed-off-by: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs