x86: Report cpb and eff_freq_ro flags correctly

Add the flags to get rid of the [9] and [10] feature names
in cpuinfo's 'power management' fields and replace them with
meaningful names.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Link: http://lkml.kernel.org/r/1323875574-17881-1-git-send-email-joerg.roedel@amd.com


Signed-off-by: Ingo Molnar <mingo@elte.hu>