ring name size

[Thomas Monjalon]

Hello,

When creating a ring, we need to know the maximum length of the name.
It seems this value is not documented.
And there is no constant defined.
There is only RTE_MEMZONE_NAMESIZE.

Should we document the maximum length as 31 and add a constant?
#define RTE_RING_NAME_SIZE RTE_MEMZONE_NAMESIZE