Rename testStagefright_b72165027 to meet naming standards

Should be testStagefright_bug_72165027

Bug: 77973384
Test: compilation
Change-Id: I3a0a1520ab278dcaba84669ac65f0e689f4a2667
(cherry picked from commit da3e5236d3c2aed4e7c3cb63c8d196faaaf1128a)
diff --git a/tests/tests/security/src/android/security/cts/StagefrightTest.java b/tests/tests/security/src/android/security/cts/StagefrightTest.java
index 6740d98..977ab60 100644
--- a/tests/tests/security/src/android/security/cts/StagefrightTest.java
+++ b/tests/tests/security/src/android/security/cts/StagefrightTest.java
@@ -242,7 +242,7 @@
      ***********************************************************/
 
     @SecurityTest
-    public void testStagefright_b72165027() throws Exception {
+    public void testStagefright_bug_72165027() throws Exception {
         doStagefrightTest(R.raw.bug_72165027);
     }