Allow SystemSuspend to read from sysfs_wakeup_reasons

This allows the SystemSuspend to read wakeup reasons from
sysfs_wakeup_reasons.

Test: Local test verified SystemSuspend can access sysfs_wakeup_reasons
Bug: 171021049
Change-Id: Ic5d723a989edbcbd55ff497a55ce8384ba1f226c
1 file changed