Check the following -
1. Vulkan ICD supports VK_KHR_external_fence_fd
2. ExternalFenceProperties and ExternalSemaphoreProperties
   support Android FD.

eglCreateSync - if FD was provided import to VkFence,
                else create VkFence with new FD and then
                flush and submit VkFence on next vkQueueSubmit.

eglGetSyncAttrib - for status call vkGetFenceStatus.

eglDupNativeFenceFdANDROID - return FD from vkGetFenceFD call.

eglClientWaitSync - call vkWaitForFences.

eglWaitSync - dup FD, create VkSemaphore and import FD, then
              flush() and add VkSemaphore to next vkQueueSubmit
              as a waiting semaphore.

Extended end2end test suite with nativefence test cases.

Bug: angleproject:2517
Test: angle_end2end_tests --gtest_filter=EGLSyncTest.AndroidNativeFence_*
Change-Id: I8f6a6f4c3d71d83007f662b78377aa015a740035
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2026177
Commit-Queue: Mohan Maiya <m.maiya@samsung.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>