net/thunderx: align dynamic log names with standard

net/thunderx: align dynamic log names with standard

This commit aligns the names for dynamic logging with
the newly defined logging format.

Note that the "nicvf" term has been replaced with "thunderx",
as the naming scheme defines that a PMD name should be the
same as the directory that it lives in: drivers/net/thunderx

Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>