Add mixer_paths.xml

* Moved from vendor

Change-Id: Ia47c4b5c59dae1a7aa2084c8d31d1af2e8d57a0f
Update header for open source lights HAL

Change-Id: I38d1a35bf61da2fd29fdfad87730e1d2a766c3cd
init: Add more permissions for LED

Change-Id: I1c89a72544b056158dfe6ffc0599292671c981db