Fix unique ID attestation.

Test: CTS test will be added.
Bug: 34671471
Change-Id: I2f36b85ba7a46e7aabe83b8e0c58a8092ee1f643
diff --git a/keystore/permissions.h b/keystore/permissions.h
index f5f1831..80d0e04 100644
--- a/keystore/permissions.h
+++ b/keystore/permissions.h
@@ -39,6 +39,7 @@
     P_CLEAR_UID = 1 << 15,
     P_ADD_AUTH = 1 << 16,
     P_USER_CHANGED = 1 << 17,
+    P_GEN_UNIQUE_ID = 1 << 18,
 };
 
 const char* get_perm_label(perm_t perm);