Turn on extcon event observing

selinux policy now includes sysfs_extcon
Submit after
https://android-review.googlesource.com/c/platform/system/sepolicy/+/907257
is merged

Bug: 124364409
Test: m services.core
Change-Id: I5401e36b5e752387cf7794dcca55da2270d46f66
1 file changed