rhine: add cacao service permission

Change-Id: Ifda931cebcb6d460fd53a028d8e7b8c4a31742c9
rhine: jb MR2 bringup

* set cpu variant
* remove BSP camera hack
* use unified fstab
* set config_deviceHardwareKeys
* allow device to sleep in off-mode charging
* copy BTLE permission file
* remove wifi_p2p network
* fix BT rev-tether iface name
* update bt permissions
* update wpa_supplicant conf
* set max egl cache
* add audiod service

Change-Id: I77c1d7a9f79a5e248268d14b3f6efbbf43842a7a