FP4: Build vndservicemanager

vndservicemanager has been removed for the devices with API level
>= 30 but FP4 still needs it to provide vendor-implemented services.

Ref: b/149867896
Bug: 148823278
Change-Id: I08ed6a242c8ac1f64da12204d618376fe1a5c8ac
diff --git a/device.mk b/device.mk
index 353cf7e..9d69920 100644
--- a/device.mk
+++ b/device.mk
@@ -305,3 +305,7 @@
 # USB
 PRODUCT_PACKAGES += \
     android.hardware.usb@1.2-service-qti
+
+# vndservicemanager
+PRODUCT_PACKAGES += \
+    vndservicemanager