ice: add extack when unable to read device caps

When filling out information for the DEVLINK_CMD_INFO_GET, the driver
needs to read some device capabilities. Add an extack message to
properly inform the caller of the failure, as we do for other failures
in this function.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

drivers/net/ethernet/intel/ice/ice_devlink.c

@@ -283,6 +283,9 @@ static int ice_devlink_info_get(struct devlink *devlink,
 	/* discover capabilities first */
 	status = ice_discover_dev_caps(hw, &ctx->dev_caps);
 	if (status) {
+		dev_dbg(dev, "Failed to discover device capabilities, status %s aq_err %s\n",
+			ice_stat_str(status), ice_aq_str(hw->adminq.sq_last_status));
+		NL_SET_ERR_MSG_MOD(extack, "Unable to discover device capabilities");
 		err = -EIO;
 		goto out_free_ctx;
 	}