Add a method to trigger multiple FMQ blocking reads.

Test: FMQ unit tests
Bug: 33815422
Change-Id: Idcd1fd79232a1b0caa5784e8dd4f3a929f52fded
diff --git a/tests/msgq/1.0/ITestMsgQ.hal b/tests/msgq/1.0/ITestMsgQ.hal
index 933e39b..e000f55 100644
--- a/tests/msgq/1.0/ITestMsgQ.hal
+++ b/tests/msgq/1.0/ITestMsgQ.hal
@@ -91,4 +91,14 @@
      *
      */
     oneway requestBlockingRead(int32_t count);
+
+    /*
+     * This method requests the service to repeatedly trigger blocking reads.
+     *
+     * @param count Number of messages to read in a single blocking read.
+     * @param numIter Number of blocking reads to trigger.
+     *
+     */
+    oneway requestBlockingReadRepeat(int32_t count, int32_t numIter);
+
 };