For some verion of linux kernel, kzmalloc could not be used,
so we should use a common interface, as dev_zalloc.
Or it will meet compile errors on other linux kernel version.
Change-Id: I2c248b701ace03bc249db036a38739672eb29652
Reviewed-on: https://gerrit.mot.com/2737220
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key