am 85b3013e: fix deadlock issues that arise when there are simultaneous effect control interface calls to proxy and to non sub-effect wrappers(eg., bundlewrapper) from audioflinger Also, return NO_ERROR when CMD_OFFLOAD succeeds

* commit '85b3013e06e8fe7802fe6259ecac80261e834332':
  fix deadlock issues that arise when there are simultaneous effect control interface calls to proxy and to non sub-effect wrappers(eg., bundlewrapper) from audioflinger Also, return NO_ERROR when CMD_OFFLOAD succeeds