Add Theme Engine to the builds

Change-Id: I57568ebef3f9800e0ad7c39b6352186470ad9f08
diff --git a/config/themes_common.mk b/config/themes_common.mk
new file mode 100644
index 0000000..919b4a1
--- /dev/null
+++ b/config/themes_common.mk
@@ -0,0 +1,8 @@
+# T-Mobile theme engine
+PRODUCT_PACKAGES += \
+       ThemeManager \
+       ThemeChooser \
+       com.tmobile.themes
+
+PRODUCT_COPY_FILES += \
+       vendor/cm/config/permissions/com.tmobile.software.themes.xml:system/etc/permissions/com.tmobile.software.themes.xml