Find7: switch custom RIL class to OppoRIL

Thanks to Omni for this.

Change-Id: I27167ff3e6e9b94686e30883779b407e35e2d173
Find7: camera: add missing include for Lollipop

Change-Id: I9ff1b1c1088be78c38ccf3c339cb990f31283ca9
Find7: kernel-headers: fix to compile with UAPI headers

Change-Id: Ifaa87ae0e2e6a44ed29e6fe70950b5dafc022e3b
Find7: kernel-headers: add audio effects header

Change-Id: Ie95140626945d458e6a15f054a556caa1bc15c8c
Find7: kernel-headers: workaround for new OMX wrapper

Change-Id: Ibcd06d55ff01e0e10a7b0555a2664327de5ecd29
Find7: disable unsupported overlays for LP bringup

Change-Id: I8a9c336d8e5f7ad93e29353e3619e1feb6d26012