Add fingerprint HAL to emulator system images

This will build fingerprint.goldfish.so and fingerprint.ranchu.so
HALs for emulator system images and put them into the hw/
directory.

Change-Id: I6959d4b8e99ea0476c324c01ff05e44716ad8fa1
diff --git a/target/product/emulator.mk b/target/product/emulator.mk
index 3a8a4aa..d9ff62e 100644
--- a/target/product/emulator.mk
+++ b/target/product/emulator.mk
@@ -40,11 +40,13 @@
     camera.goldfish.jpeg \
     lights.goldfish \
     gps.goldfish \
+    fingerprint.goldfish \
     sensors.goldfish \
     e2fsck \
     audio.primary.goldfish \
     vibrator.goldfish \
     power.goldfish \
+    fingerprint.ranchu \
     sensors.ranchu