K 10
svn:author
V 3
avg
K 8
svn:date
V 27
2010-02-06T12:48:06.117468Z
K 7
svn:log
V 491
acpi_cpu: prefer _OSC over _PDC, just in case

_PDC was deprecated in favor of _OSC long time ago, but it
seems that they still peacefully coexist and in some case
only _PDC is present.
Still _OSC provides a reacher interface and is capable to
report back its status.
If the status is non-zero, then report it, we may find
it useful to understand what firmware expects from OS.
Also clean up some comments that became less useful over time.

Reviewed by:	njl, jhb, rpaulo
MFC after:	3 weeks

END