regulator: Troika ：Set BUCK8 output voltage to 1.35V

regulator: Troika	：Set BUCK8 output voltage to 1.35V

Merge samsung patch:
[MODAP-23773][Troika	][regulator] Set BUCK8 output voltage to 1.35V.
Signed-off-by: yujing <jing12.yu@samsung.com>
Change-Id: Ic609cdf471fd23ad199eabdaec364826fbea30cd
Signed-off-by: Wen Xie <xiewen3@motorola.com>
Reviewed-on: https://gerrit.mot.com/1327857
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Zhengming Yao <yaozm1@mt.com>
Reviewed-by: Xiangpo Zhao <zhaoxp3@motorola.com>
Submit-Approved: Lu Lu <lulu2@mt.com>