[Detail] 1.add mt6885 related feature header 2.add emi.h to support for sspm_ipi MTK-Commit-Id: 589c8680e4a74bfde9bf89bfad8b000e3313ca25 Change-Id: I64a2bd68adcb64757c9518a6df69fec93562d7fb Signed-off-by: Juju Sung <juju.sung@mediatek.com> CR-Id: ALPS05014853 Feature: [Module]Kernel Maintenance