qcom-common: remove cpufreq permissions now set by uevent

Change-Id: I7dbe1a604310d80a58a641ce7ebb086ac5644186
qcom-common: Remove mpeg4/h263/h264 ffmpeg entries

Change-Id: Id050873cea4db0488846f3c1f746887339a2c970
qcom-common: Only include init.qcom.thermal_links.sh if needed

If we aren't installing any of the files that are used as the
destinations of the links then we shouldn't bother installing
the script that creates the links either.

Change-Id: I16495104c0ae44b35361f4b400e6fb9a19d6f3b1