Add HIDL support services to telephony_system_ext

Some devices don't use base_system_ext.mk and instead use
telephony_system_ext.mk.
These also need the HIDL support services for devices launched before V.

Test: m
Bug: 305873288
Change-Id: I9a92c274291f547f607556eacf9f3d641350aa87
diff --git a/target/product/telephony_system_ext.mk b/target/product/telephony_system_ext.mk
index f81a607..f821381 100644
--- a/target/product/telephony_system_ext.mk
+++ b/target/product/telephony_system_ext.mk
@@ -21,3 +21,7 @@
 PRODUCT_PACKAGES += \
     CarrierConfig \
     EmergencyInfo \
+
+PRODUCT_PACKAGES_SHIPPING_API_LEVEL_34 += \
+    hwservicemanager \
+    android.hidl.allocator@1.0-service \