Move death signal debug feature driver from kernel to DLKM. Ported from (CR) Change-Id: Icbab4faaa58710a6f99433db7807cc175e5f38d8 Reviewed-on: https://gerrit.mot.com/1519314 SME-Granted: SME Approvals Granted SLTApproved: Slta Waiver Tested-by: Jira Key Reviewed-by: Huosheng Liao <liaohs@motorola.com> Reviewed-by: Zhenxin Xi <xizx@motorola.com> Submit-Approved: Jira Key