yuga: set hw overlay

Change-Id: I5b1130ccd206f4978132c19d97c380e79cb3ace4
yuga: move brightness overlay on device

Change-Id: Ia5dd5e692c1cea76c1f9508929fc6b276653409d
Yuga: move LED flashlight overlay

"has_led_flash" in Settings is deprecated.
"config_enableTorch" should be used instead in framework overlay.

Change-Id: I84476e7826ab1c911212f38d080662e261a5b030