Camera3: Fix memory leak during frame reprocess

The 'streamCbRoutine()' method of the reprocess
 channel receive a camera super frame that was
 previously allocated on heap and must release it
 after exit

Bug: 13301331

Change-Id: Ie90f6b4f945f4b7fcc6c46d541871e44c3f6943b
Signed-off-by: Daniel Jarai <jaraidaniel@gmail.com>

camera/QCamera2/HAL3/QCamera3Channel.cpp

@@ -1950,6 +1950,7 @@ void QCamera3ReprocessChannel::streamCbRoutine(mm_camera_super_buf_t *super_fram
     }
     *frame = *super_frame;
     obj->m_postprocessor.processPPData(frame);
+    free(super_frame);
     return;
 }