[maguro][bluetooth] Fix bluetooth enable/disable

The tuna bluetooth platform driver sends rfkill uevents when bluetooth is
supposed to be activated. Let's react to these events and re-start the
firmware download whenever bluetooth is activated.
Also, to not confuse udev, do not rfkill-unblock the bluetooth devices
(including the platform device) as it could end in an infinite loop.

Change-Id: I1c1b04c7138c20b46e3bc15a52ecb754113d7e15
[maguro][bluetooth] Don't start bcm4330-bluetooth-firmware at boot

It is now started as soon as rfkill uevent is sent from the tuna
bluetooth platform driver, which happens when a user enables bluetooth
in jolla-settings or at boot (if it was enabled before shutdown).

Change-Id: Ice1886addf8dc073aaaa3e054bebd58760365cc1
[maguro][bluetooth] rename udev rule file

Change-Id: I1da33a194bd5e84b686c59989aa3792f7593c057
[maguro][gpu_oc] Set GPU clock speed to the chipsets actual default speed

Change-Id: Id0319ce2af3612a747b5dab76a747a403fff7b64
Merge pull request #45 from beidl/hybris-10.1

[maguro][bluetooth][gpu_oc] Bluetooth fixes and GPU freq setting