Modified sharedBoHandles to use the (boHandle, rootDeviceIndex) pair
as a key instead of boHandle, and added rootDeviceIndex variable in
the BufferObjectHandleWrapper class of drm_buffer_object.h.
Previously sharedBoHandles uses boHandle as a key. However, this will
not work with the system using multiple devices, because each devices
can return the same handle to refer different memory region.
Related-To: GSD-9024
Signed-off-by: Young Jin Yoon <young.jin.yoon@intel.com>
675ec13439