Camera: fix failure on legacy device

Legacy device does not support AE trigger.

Bug: 27340302
Change-Id: I1ce594461cd4e61babc9d216437deca6a9cce57a
diff --git a/tests/camera/src/android/hardware/camera2/cts/StillCaptureTest.java b/tests/camera/src/android/hardware/camera2/cts/StillCaptureTest.java
index ce229b1..a9b4ad2 100644
--- a/tests/camera/src/android/hardware/camera2/cts/StillCaptureTest.java
+++ b/tests/camera/src/android/hardware/camera2/cts/StillCaptureTest.java
@@ -402,7 +402,7 @@
                     continue;
                 }
                 takePictureTestByCamera(/*aeRegions*/null, /*awbRegions*/null, /*afRegions*/null,
-                        /*addAeTriggerCancel*/true, /*allocateBitmap*/true);
+                        /*addAeTriggerCancel*/false, /*allocateBitmap*/true);
             } finally {
                 closeDevice();
                 closeImageReader();