Vibra: Compile and stage vibrator.goldfish

Following the new vibrator hardware module implementation, the
goldfish vibrator module is no longer integrated in emulator products
and therefore needs to be explicitly built for the 'mini-emulator' targets.

This patch is related to others in:
 - hardware/libhardware
 - hardware/libhardware_legacy
 - frameworks/base
 - device/generic/goldfish
 - platform/build

Change-Id: I844279f5535289f079d412fdc44c5cb3c9c1130c
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Signed-off-by: David Wagner <david.wagner@intel.com>
Author-tracking-BZ: 94611
diff --git a/mini_emulator_common.mk b/mini_emulator_common.mk
index 9a41ba3..9ed3d06 100644
--- a/mini_emulator_common.mk
+++ b/mini_emulator_common.mk
@@ -22,6 +22,7 @@
     lights.goldfish \
     power.goldfish \
     sensors.goldfish \
+    vibrator.goldfish \
     qemu-props \
     qemud \
     libGLESv1_CM_emulation \