libertas: move to uniform lbs_/LBS_ namespace

From: Holger Schurig <[email protected]>

This patch unifies the namespace of variables, functions defines and structures. It does:

- rename libertas_XXX to lbs_XXX
- rename LIBERTAS_XXX to lbs_XXX
- rename wlan_XXX to lbs_XXX
- rename WLAN_XXX to LBS_XXX (but only those that were defined in libertas-local *.h files, e.g. not defines from net/ieee80211.h)

While passing, I fixed some checkpatch.pl errors too.

Patch is quite large, available at the URL below. I've updated the patch and smoketested it, plus verified it does not change module parameter names.

http://people.redhat.com/dcbw/libertas-namespace-cleanup.patch