Secretkeeper: Reduce max parallel session to 4
Secretkeeper is OOMig with ~7 session artifacts in memory. Reduce the
number of parallel sessions to 4 to reduce the memory pressure.
Test: Flash tz -> atest MicrodroidHostTests & ensure no VMs fail.
Test: atest VtsSecretkeeperTargetTest
Bug: 327526008
Change-Id: I7f37027249a30bae545c73b9637e1a2c647610dc
diff --git a/core/src/ta.rs b/core/src/ta.rs
index b2a4fa7..c6a6903 100644
--- a/core/src/ta.rs
+++ b/core/src/ta.rs
@@ -53,7 +53,7 @@
const CURRENT_VERSION: u64 = 1;
/// Default maximum number of live session keys.
-const MAX_SESSIONS_DEFAULT: usize = 8;
+const MAX_SESSIONS_DEFAULT: usize = 4;
/// Macro to build an [`ApiError`] instance.
/// E.g. use: `aidl_err!(InternalError, "some {} format", arg)`.
