Allow dumpstate to open and read linkerconfig directory

To include linkerconfig results into dumpstate, dumpstate needs extra
permission on lnkerconfig directory to search all items within the
directory. This change allows dumpstate to have extra access on
linkerconfig directory.

Bug: 148840832
Test: tested from cuttlefish
Change-Id: I955b54ec2cc3d1dcedaa34406e0e0776b6ac12f6
1 file changed