control:p10bmc: Events to set DVFS temp params

Create the events that use the set_parameter_from_group_max action to
set parameters with the processor core and IO ring DVFS (Dynamic
Frequency and Voltage Slewing) temperatures, minus 3 degrees.
Subtracting 3 degrees allows the fans to start increasing before the
DVFS kicks in.  The value chosen is just a starting point.

Parameter names:
* proc_N_core_dvfs_temp
* proc_N_ioring_dvfs_temp

These parameters can then be used by the set_net_increase_target action
as the value to compare the actual temperatures against to know when to
start increasing fan targets.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: I40320ef87b2e3ccd5ea6761b61b3c3fcc3f0b526
8 files changed