bluez: Add udev rule to give btd access to coredump_disabled sysfs

To enable or disable the devcoredump feature via chrome flag, bluetoothd
needs access to /sys/class/bluetooth/hci0/device/coredump_disabled sysfs
entry. Add udev rule assign ownership of that sysfs entry to bluetooth
user.

BUG=b:203034370
TEST=Change chrome flag and verify changes reflect in the
     '/sys/class/bluetooth/hci0/device/coredump_disabled' file

Change-Id: I703e1217d6238a7a1bf6842b578b50842281049a
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/chromiumos-overlay/+/3814544
Commit-Queue: Manish Mandlik <mmandlik@chromium.org>
Reviewed-by: Abhishek Pandit-Subedi <abhishekpandit@google.com>
Tested-by: Manish Mandlik <mmandlik@chromium.org>
3 files changed