Modify: Porting backlight sm5350,add pamameter of second backlight IC. Change-Id: Ib9b2ad61ecf942d7b0258890af03f4ccf45c0328 Reviewed-on: https://gerrit.mot.com/2152637 SLTApproved: Slta Waiver SME-Granted: SME Approvals Granted Tested-by: Jira Key Reviewed-by: Yeqing Wang <wangyq13@motorola.com> Reviewed-by: gaoyx9 <gaoyx9@motorola.com> Submit-Approved: gaoyx9 <gaoyx9@motorola.com> Reviewed-by: Huosheng Liao <liaohs@motorola.com>