powerHAL: Parameterize lowpower cpufreq code

Since we're sharing this powerHAL between the HiKey and
HiKey960, use some property parameters for some of the
previously hard-coded lowpower cpufreq values.

Change-Id: I35fbf555054c24f27f7f33f82665a048dabc2a02
Signed-off-by: John Stultz <john.stultz@linaro.org>
1 file changed