ASoC: msm: qdsp6v2: fix possible integer overflow

Check integer overflow before multiplying struct size. If that happens
should return immediately. In addition if param length is greater than
MAX size from spec, better return error.

Change-Id: Ib96cb419ade042d21a1213f6d8c2ff339f5d1c56
CRs-fixed: 605273
Signed-off-by: Fred Oh <fred@codeaurora.org>