RTE_BPF_ARG_PTR_STACK is used as internal program
arg type. Rename to RTE_BPF_ARG_RESERVED to
avoid exposing internal program type.
Signed-off-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Tested-by: Konstantin Ananyev <konstantin.ananyev@intel.com>