Make libkeystore_aidl shared and export to PDK.

Bug: 69539820
Test: manual

Change-Id: I6b8e8543b89245062790443f1e8b759418f7c162
diff --git a/keystore-engine/Android.mk b/keystore-engine/Android.mk
index 8988857..c995dfc 100644
--- a/keystore-engine/Android.mk
+++ b/keystore-engine/Android.mk
@@ -30,6 +30,7 @@
 	libcrypto \
 	libcutils \
 	libhidlbase \
+	libkeystore_aidl \
 	libkeystore_binder \
 	liblog \
 	libutils