[PATCH] eal: make eal_parse_coremask external

[Dmitry Kozlyuk]

2022-08-19 17:33 (UTC-0500), Timothy McDaniel:
> DLB2 has a need to parse a user supplied coremask as part
> of an optimization that associates optimal core/resource
> pairs.  Therefore eal_parse_coremask has been renamed
> to rte_eal_parse_coremask and exported.

INTERNAL would be sufficient since the function is only used within DPDK.
EXPERIMENTAL is for symbols that would be used by consumer apps.