find7a: Add sensor configuration file

The sensor HAL depends on this file to initialize properly on this device.

Signed-off-by: houst0nn <houstonn@gmail.com>
Change-Id: I70957d1c5e939fafa4026e001d63b3b6ec94bd62
find7a: Symlink firmware during install, not on boot

The syspart fixup scripts are always a pain, start killing them

This temporarily disables our wifi MAC fixup script (if it was ever running/working at all in the first place...), we'll
bring that back later.

Change-Id: I1c2186412d0b221f10b82934700cfefa175166de