Need ability to disable IPC usage for platforms beyond Android

The following 2 files disable IPC usage for the Android platform:
https://github.com/intel/media-driver/blob/master/media_driver/linux/common/os/mos_context_specific.cpp
https://github.com/intel/media-driver/blob/master/media_driver/linux/common/os/mos_os_specific.c

There is a need to do the same thing on other platforms, such as Chrome OS.

It would be nice if the IPC-related code is encapsulated by a slightly more meaningful name. For example, the name could describe the feature being supported. Chrome OS or any other platform can then switch it on or off when calling cmake. This suggestion is credited to Miguel Casas .