zenfone7: Include the new inherit common product makefile

Change-Id: Ie3d9f938420965793699db2b3a590ce7c38776d6
diff --git a/omni_zenfone7.mk b/omni_zenfone7.mk
index 6adc274..3c86d7b 100644
--- a/omni_zenfone7.mk
+++ b/omni_zenfone7.mk
@@ -37,6 +37,7 @@
 
 # Inherit from hardware-specific part of the product configuration
 $(call inherit-product, device/asus/zenfone7/device.mk)
+$(call inherit-product, device/asus/sm8250-common/omni_common.mk)
 
 # Discard inherited values and use our own instead.
 PRODUCT_DEVICE := zenfone7