Fix build on new fuchsia.git versions

Some headers were moved around and 4124334d602 ([libc] Remove per-arch
ipc.h, 2023-03-20) removed shm functions and types (which were never implemented
on fuchsia).

Bug: 124035
Change-Id: Iee55c192df0eee8acdd625d8b54e49a8d7e75889
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/github.com/intel/media-driver/+/824514
Reviewed-by: Dustin Green <dustingreen@google.com>