find7: Use libinit to determine LCD density

Change-Id: I3aedb1e949fc959a3c53a2cf873af3c206970e28
find7s: Add support for find7s notification lights

PS4: Major rework
Based on CM/Gummy's find7s support, but with a lot of rework/fixes

Gummy/CM limits onMS/offMS to 500 - despite the fact that this
is the second shortest possible value
Change-Id: I9d3a2a7ee59c706ab793fe1ca0ea6f5e9d14949c
[2/2] find7: cpuquiet: initial bringup

Disable starting of mpdecision

Change-Id: Ib89e087a42c99a09665009c950ee7ae4a7fc2ecb
find7: Update sensor config from ColorOS 1.2.3i

Change-Id: Ifb89015b2fd46597fdb32c8d201b0925a9d73eb5
find7: Actually update our MAC address

Fix the d'herp we broke with https://github.com/omnirom/android_device_oppo_msm8974-common/commit/3cb92214e11f48b8a7a20fb227d0ec98c0c72f17

Change-Id: I8303bb6f6c4f70a30a2ae72c10d873c62edcb681
find7: remove cpufreq config from ramdisk

Adding another level of config in the ramdisk ist
just confusing and not needed.

There should only be kernel config and optional
user config. The kernel config should define
the absolute default for that device without the
need to pimp it in the ramdisk.

Also remove some unused stuff and move the
read ahead config to the correct place

Change-Id: I854901653293c4db5806612ff7edc5918d34f42e
Rename to Find7a

Change-Id: Ifd30b8b081bf27565c11252dcc4c41e55ec4a0cc