doc: fix driver names

doc: fix driver names

Since the built driver filenames have changed in DPDK 20.11, we need to
update the driver doc to match.

Most drivers start their section with the driver filename highlighted in
bold, while a number were missing the highlight. When updating the names,
add the markers for bold text to any missing it, so as to have things more
consistent.

Fixes: a20b2c01a7a1 ("build: standardize component names and defines")
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Reviewed-by: Rosen Xu <rosen.xu@intel.com>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>