Attached patch fix/add several cpu features.

refs:

[1] Intel Processor Identification and the CPUID instruction
    Application Note 485.
    http://developer.intel.ru/download/design/Xeon/applnots/24161826.pdf

[2] http://www.sandpile.org/ia32/cpuid.htmSigned-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>