staging: unisys: refactor VISORCHIPSET_ADDRESSTYPE

Get rid of VISORCHIPSET_ADDRESSTYPE and replace it with enum
visorchipset_addresstype. Fix CamelCase names:

ADDRTYPE_localPhysical => ADDRTYPE_LOCALPHYSICAL
ADDRTYPE_localTest => ADDRTYPE_LOCALTEST

Update all references to changed names.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>