releasetools: Don't update if file is the same

If during incremental OTA package preparation the file is not changed
at all do not include it in the update package.

Change-Id: I0a0b2ad5578e640d36fefbd5b7f002a0f3f24d2c
Merge "releasetools: Don't update if file is the same"
CPUFreq: Set optimal frequency for msm8610

The ondemand governor has the ability to adapt to multicore
targets to render better scaling. This change sets one of such
parameters i.e optimal frequency to the nominal max frequency
to achieve best perf/power. Along with that, this change also
tunes the down_differential_multi_core to a reasonable value.

Change-Id: I4fe76224f0166a3a6db2a79c18637e0ab760ceac
CRs-fixed: 561456
Merge "CPUFreq: Set optimal frequency for msm8610"