evb22 rename parameter to match standard document

Use the same naming convention in the configuration file
and in the standard.

Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
evb22 manunal page for IEEE 802.1 Qbg ratified standard

Add the manual page to describe the parameter and meanings
of the ratified draft.

Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>