display: Remove genlock usage

genlock is no-op from Android 4.2 onwards since the sync framework
is used for explicit synchronization.

Change-Id: Idd1df589516534a683e0fa1ef0cfbb7f0e411f67
libqdutils: Use -Wno-attributes

Change-Id: I25f19595ed29434938861a5462edc27e8d8ef717
libcopybit: fix for narrowing conversion in C++11.

Change-Id: Ic73a3c94b5142d35e0912f98acaa3d0c98163e0a
-Wno-attributes for alloc_controller
hardware/qcom/display-caf/libgralloc/alloc_controller.cpp:51:269: error: type attributes ignored after type is already defined
[-Werror=attributes]
cc1plus: all warnings being treated as errors

Change-Id: I3e930be5d0ab9e6f48650d12abf7dd182dcb3f95