Don't use fence sync for qcom legacy

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: Ifecc7af579bfde9d0a7daaaf528ea0773ce6ceb2
surfaceflinger: enable EGL_NEEDS_FNW for qcom legacy

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: Ia6df94e8380062d646e29f293e5dc768e8a138e7