This change introduces "is APF enabled" system properties, and
uses them as trigger conditions for APF nodes / pre-APF nodes.
By default APF nodes are active, and pre-APF nodes are inactive,
which maintains the situation before this change.
A future experiment will flip "is APF enabled" system properties,
deactivating APF nodes and activating pre-APF nodes. For more
info see go/pixel-perf-apf-experiment.
Bug: 365855872
Test: set vendor.powerhal.apf_enabled=false, vendor.powerhal.apf_disabled=true, observe auto_prefer_fit
procfs value staying "false" and instead preferred_idle_mask_mid
changing to 0x1ff during app launches
Flag: NONE powerhint change does not support flags
Change-Id: I85b5dc812132f229c2cc8583aaadd31d7eedc178
Signed-off-by: Dmitry Skiba <dskiba@google.com>
7571b12f0e