libEGL: silence warnings for client extension querying

Client extensions may be queried by

  eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);

Generate EGL_BAD_DISPLAY, but do not log the error.

Bug: 30301853
Change-Id: Ie67987b0ec0a8e70937e8baa16baa4f1a204915f
1 file changed