_eglInitSync checked that the display supported the sync type (such as
EGL_SYNC_FENCE), and did it wrong. When the check failed it emitted
EGL_BAD_ATTRIBUTE, but sometimes EGL_BAD_PARAMETER is needed.
_eglCreateSync already does the error checking, and it does it right.
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>