staging: wlan-ng: rename DIDmib_dot11mac_dot11OperationTable_dot11MACAddress in p80211metadef.h

Rename DIDmib_dot11mac_dot11OperationTable_dot11MACAddress in
p80211metadef.h to DIDMIB_DOT11MAC_OPERATIONTABLE_MACADDRESS to fix
"Avoid CamelCase" message from checkpatch and conform to the coding
style guidelines. Also shorten name by removing repeated use of
"DOT11" to ease readability and reduce long lines.

Signed-off-by: Tim Collier <osdevtc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>