Collect PCIe link statistics in dump_pcie.sh script. Move SELinux type declaration 'sysfs_pcie' here. Test: adb bugreport && unzip bugreport*.zip && grep link_stats dumpstate_board.txt Bug: 266561593 Change-Id: Iecf3a5a20892efb6d9cc9f4a5c322aafa76f8e7f Signed-off-by: Doug Zobel <zobel@google.com>