Sound: Boeffla & Flar Headphone: Properly re-implement per-channel gain.
Sound: Flar Sound: add earpiece gain.
SmartPack: move all the log (logcat, dmesg, last_kmsg etc.) related features into Advanced Options.
SmartPack: added options to get dmesg-ramoops, console-ramoops (if available) etc.
Misc changes, mainly in Sound page.
