hal: Reject DSP decoder request during voice call

- For resource constrained targets DSP decoders
  should not supported during voice call
  due to MIPS limitation

- Add support for get param to check dsp decoder
  availability, which will be used by frameworks
  before creation of decoder

Change-Id: Ida0086aa30ab39e240581a3f482a450983d6ccd6
1 file changed