ASoC: msm: qdsp6v2: use vzalloc for large mem alloc in DTS Eagle

Use vzalloc instead of kzalloc to allocate memory that is not
used to communicate with dsp and is larger than 60KB.

Change-Id: I57f64138887e1bf12f8bd6eabfdb0b4ca31cf05a
Signed-off-by: Alexy Joseph <alexyj@codeaurora.org>