Allow dumpstate to read sysfs_loop files.

This prevents denials while taking a bugreport.

Bug: 116711254
Test: cts-tradefed run cts -m CtsSecurityHostTestCases -t
android.security.cts.SELinuxHostTest#testNoBugreportDenials

Change-Id: Ie190bfa62cf5aa172ebfff8bfd82dea2a7d1a016
1 file changed