gpu/khronos_glcts_support: skip egl_create_context test

In our egl_native support, the eglGetCurrentDisplay() returns
EGL_NO_DISPLAY which causes this test to fail.

Add this test to the test expectations so it will be skipped
for now.

BUG=chromium:421568, chromium:412865
R=kbr@chromium.org, piman@chromium.org
TEST=Build and run khronos_glcts_test binary. Ensure test is skipped.
Signed-off-by: U. Artie Eoff <ullysses.a.eoff@intel.com>

Review URL: https://codereview.chromium.org/639203002

Cr-Commit-Position: refs/heads/master@{#299013}

gpu/khronos_glcts_support/khronos_glcts_test_expectations.txt

@@ -27,6 +27,9 @@
 // Chromium implements GL_ARB_texture_rectangle which makes this test fail
 139729 DEBUG RELEASE : ES2_CTS_gtf_GL_build_Texture_Rectangle_Samplers_frag = FAIL
 
+// eglGetCurrentDisplay() returns EGL_NO_DISPLAY which causes this test to fail.
+421568 DEBUG RELEASE : ES2_CTS_gtf_GL2ExtensionTests_egl_create_context_egl_create_context = FAIL
+
 ////////////////////////////////////////////////////////////////////////////////
 //
 //  Temporary entries: they should be removed once the bugs are fixed.