selinux: Allow dumpstate send signals to vold

Test: adb bugreport
Test: verified vold stacktrace is present in bugreport
Bug: 132344997
Change-Id: I0ebf7f171d854b9aaf894ccb8c7a5f68f18e692b
Merged-In: I0ebf7f171d854b9aaf894ccb8c7a5f68f18e692b
(cherry picked from commit f7c3d19d294b166012d699899bfa190ac30f9d60)
1 file changed