Camera2: Make sure to clean out reprocess streams on shutdown as well.

Otherwise, streams may persist past expected lifetime.

Bug: 6243944
Change-Id: I901971b78baf9d577ea3812588dec3885232e7ef
diff --git a/services/camera/libcameraservice/Camera2Device.cpp b/services/camera/libcameraservice/Camera2Device.cpp
index 49f0795..2e4098e 100644
--- a/services/camera/libcameraservice/Camera2Device.cpp
+++ b/services/camera/libcameraservice/Camera2Device.cpp
@@ -145,6 +145,7 @@
             ALOGW("%s: Closing camera device %d with %d requests in flight!",
                     __FUNCTION__, mId, inProgressCount);
         }
+        mReprocessStreams.clear();
         mStreams.clear();
         res = mDevice->common.close(&mDevice->common);
         if (res != OK) {