This should allow to compile on the OZONE platform
without hitting the X11 include library problem.

The change is imported from:
https://cs.chromium.org/chromium/src/third_party/khronos/EGL/eglplatform.h

Change-Id: I3b3acc139865797ce6c4173991f15840e91f5935
Reviewed-on: https://swiftshader-review.googlesource.com/11308Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>