Revert "sepolicy : correct the matching expression of sysfs_ssr"

This reverts commit 7845ec7985b66e814334ef1f9e04ec65953b84f2.

The commit 7845ec7985b66e814334ef1f9e04ec65953b84f2 causes 1s
regression on boot time. Revert the previous commit and the sysfs
to device specific file_context.

CRs-Fixed: 2137188
Change-Id: I1a6d8aaaf620615e58dae415a48e17742d290963
2 files changed