hi4511: set ro.sf.lcd_density=320

Change-Id: Ib1b97044179b5e7e7d454162198fea3c3eaae6ae
Signed-off-by: Vishal Bhoj <vishal.bhoj@linaro.org>
diff --git a/device.mk b/device.mk
index 0cce1b8..ed945ff 100644
--- a/device.mk
+++ b/device.mk
@@ -18,6 +18,9 @@
         ro.nohardwaregfx = true \
         debug.sf.no_hw_vsync = 1
 
+PRODUCT_PROPERTY_OVERRIDES += \
+        ro.sf.lcd_density=320
+
 PRODUCT_DEFAULT_PROPERTY_OVERRIDES += \
         ro.hardware = hisiliconhi4511