Support PCH TControl

Add PCH TControl to set/get fsc parameter command.

Tested: used get TControl, powered on system, and
when called get tcontrol again value changed.

Change-Id: I12ae44e9e866c487a3efc0f1ef2736b13a9a591c
Signed-off-by: James Feist <james.feist@linux.intel.com>
1 file changed