Add goldfish cpufreq stats driver. It can only provide fake static value.

Test: run cts -m CtsStatsdHostTestCases -t
android.cts.statsd.atom.UidAtomTests#testDeviceCalculatedPowerBlameUid

Bug: 120856552
Bug: 79493321
Change-Id: Ibb414c056174e9eb084fbed9d22468a51abe1614
Signed-off-by: Weilun Du <wdu@google.com>
4 files changed