Provide a small convenience wrapper that set the display 2bytes brightness Port from: 4a5c926 Change-Id: Iadfcb1d6cdf4866391f36ee970d79840e109fe9a Signed-off-by: Bang Nguyen <bangnguyen@motorola.com> Reviewed-on: https://gerrit.mot.com/1410287 SME-Granted: SME Approvals Granted SLTApproved: Slta Waiver Tested-by: Jira Key Submit-Approved: Jira Key Reviewed-on: https://gerrit.mot.com/1509783 Reviewed-by: Xiangpo Zhao <zhaoxp3@motorola.com>