snowball: Enable software rendering using ro.nohardwaregfx=true

Change-Id: Ieee43727117d6efedd7320d460cccdb590615513
Signed-off-by: Vishal Bhoj <vishal.bhoj@linaro.org>
diff --git a/device.mk b/device.mk
index 721ad58..fd8085d 100644
--- a/device.mk
+++ b/device.mk
@@ -42,3 +42,7 @@
 # Filesystem management tools
 PRODUCT_PACKAGES += \
         make_ext4fs
+
+PRODUCT_PROPERTY_OVERRIDES += \
+        ro.nohardwaregfx=true
+