APL NUC would expose different MWAIT support status with different
BIOS configuration, then the acpi idle driver would have problem if
we provide MWAIT Cx data only. Now we will enforce guest enter port
IO Cx even BIOS expose support of MWAIT.
Given all Broxton family share same port IO Cx data, we use a unified
struct cpu_cx_data cx_bxt[] for all Broxton SoCs;
Tracked-On: #3158
Signed-off-by: Victor Sun <victor.sun@intel.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
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