In the old code, the recovery only enumerated the input devices at the
startup, and read the input events from these devices.
So if a USB input device is probed after the recovery startup, then the
recovery can't read the events from this device.
This patch use inotify to monitor /dev/input for new added input
device, then support input device hotplug in recovery mode.
Bug: 111847510
Test: can use USB keyboard hotplugged in recovery mode
Change-Id: I7e7dcbd619d3c66a2f40a43418f5dac6a50c859e
Signed-off-by: Liu Shuo A <shuo.a.liu@intel.com>
Signed-off-by: Ming Tan <ming.tan@intel.com>
a7952ac141