zenfone9: Add back WFD

Change-Id: I42995d550f05827dc0294adf28760f26258f89d9
diff --git a/device.mk b/device.mk
index 06aa298..cc7f33d 100755
--- a/device.mk
+++ b/device.mk
@@ -347,3 +347,6 @@
 # Wifi Display
 PRODUCT_PACKAGES += \
     libnl
+
+PRODUCT_BOOT_JARS += \
+    WfdCommon