tuna: import Fugu's LMK values

Shot in the dark at fixing LMK.
overlay: disable LED always on during charge.

Stop tearing down that LED
tuna: increase hispeed_freq to 920mhz (Credit @Ziyann)
tuna: audio: mark unused parameters

Change-Id: I26e7436513bacf951a0cf4fc252521a8f1cdd3d8
tuna: move tty_enabled overlay to Telecomm

It has been moved in Lollipop. (@Ziyann)