ethdev: fix missing header include
ethdev: fix missing header include

The define for RTE_ETH_FLOW_MAX is defined in rte_ethdev.h, so that
header should be included in rte_eth_ctrl.h to allow it to be compiled
independently.

Fixes: 7fa96d696f2c ("ethdev: unification of flow types")
Cc: stable@dpdk.org

Signed-off-by: Bruce Richardson <66b9e8e8fbd5e9f41f91b0af050876182ce9d0e4@intel.com>
Acked-by: Andrew Rybchenko <4155e7bf8e0185127625dac6d84336299844982f@oktetlabs.ru>
Reviewed-by: David Marchand <f28529695cfa9e3e1eb84e7072aa626af4abb18e@redhat.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk