prebuilt: Add android.hardware.confirmationui@1.0 for /sbin/keystore

Change-Id: I62e68c137e9790392dd2fc44c2add990c2f408d6
Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
diff --git a/prebuilt/Android.mk b/prebuilt/Android.mk
index 5c0b441..d330799 100644
--- a/prebuilt/Android.mk
+++ b/prebuilt/Android.mk
@@ -237,6 +237,10 @@
             ifneq ($(wildcard hardware/interfaces/weaver/1.0/Android.bp),)
                 RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/android.hardware.weaver@1.0.so
             endif
+            ifneq ($(wildcard hardware/interfaces/confirmationui/1.0/Android.bp),)
+                RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/android.hardware.confirmationui@1.0.so
+            endif
+
             RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libhardware_legacy.so
         else
             RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libkeymaster1.so