The new match() callback for earlycon is to tell whether earlycon and the "real" console are the same device. Change-Id: I8b54d5d9f1d737650d0890fc9f596080c8b1aaf2 Signed-off-by: Qing Chang <a21550@motorola.com> Reviewed-on: https://gerrit.mot.com/1472629 SLTApproved: Slta Waiver SME-Granted: SME Approvals Granted Tested-by: Jira Key Reviewed-by: Qing Chang <qing@motorola.com> Submit-Approved: Jira Key Signed-off-by: Qing Chang <a21550@motorola.com> Reviewed-on: https://gerrit.mot.com/1474156 Reviewed-on: https://gerrit.mot.com/1509729 Reviewed-by: Wang Wang <wangwang1@lenovo.com>