config: enable Optimize Refresh feature for msmnile/talos

Enable optimize refresh feature for msmnile/talos. This
feature helps to avoid draw-cycles under following conditions-
    1. No change in layerstack attributes.
    2. No new buffer latched.
    3. No refresh request triggered by HWC.
    4. This display is not source of vsync.

Change-Id: I4b42bc5afd60e81fa0ae1ce6be54951f0f6cea10
CRs-Fixed: 2418804
diff --git a/config/display-product.mk b/config/display-product.mk
index 9da8397..97dedca 100644
--- a/config/display-product.mk
+++ b/config/display-product.mk
@@ -53,6 +53,7 @@
     vendor.display.disable_excl_rect=0 \
     vendor.display.comp_mask=0 \
     vendor.display.enable_posted_start_dyn=1 \
+    vendor.display.enable_optimize_refresh=1 \
     vendor.display.use_smooth_motion=1 \
     debug.sf.early_phase_offset_ns=500000 \
     debug.sf.early_app_phase_offset_ns=500000 \