Define poweron_alarm sysfs file

Define poweron_alarm sysfs file as sysfs_poweron_alarm
to fix the denials of poweron_alarm.

avc: denied { add_name } for name="poweron_alarm"
scontext=u:r:init:s0 tcontext=u:object_r:sysfs:s0
tclass=dir
avc: denied { create } for name="poweron_alarm"
scontext=u:r:init:s0 tcontext=u:object_r:sysfs:s0
tclass=file

CRs-Fixed: 2116579
Change-Id: I5c8a608ea80ab45d4e746d4635f577379e82ee90
2 files changed