alsa_conformance_test: Fix realloc crash

Should not use realloc in create funciton. It will cause a crash.
Use malloc instead.

BUG=None
TEST=Run alsa_conformance_test won't crash.

Change-Id: Id4d16765f44d8cfd0b0cb516c5c307d23a4d5665
Reviewed-on: https://chromium-review.googlesource.com/1545621
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Reviewed-by: Cheng-Yi Chiang <cychiang@chromium.org>
1 file changed