omni: add lato font overlay

add file fonts_customization.xml to allow using
fonts in /product/fonts

Change-Id: Icee8715f9960ac7b27daeebb393d4b28b1848df6
diff --git a/config/common.mk b/config/common.mk
index 71396c1..351fc52 100644
--- a/config/common.mk
+++ b/config/common.mk
@@ -102,6 +102,9 @@
 OMNI_PRODUCT_PROPERTIES += \
     ro.services.whitelist.packagelist=com.google.android.gms
 
+PRODUCT_COPY_FILES += \
+    vendor/omni/prebuilt/etc/fonts_customization.xml:$(TARGET_COPY_OUT_PRODUCT)/etc/fonts_customization.xml
+
 # Additional packages
 -include vendor/omni/config/packages.mk
 
diff --git a/config/packages.mk b/config/packages.mk
index 13f7e21..f9f171d 100644
--- a/config/packages.mk
+++ b/config/packages.mk
@@ -74,3 +74,5 @@
 PRODUCT_PACKAGES_ENG += \
     bash \
     su
+
+$(call inherit-product-if-exists, external/google-fonts/lato/fonts.mk)