mctp-i2c: support recovery of MCTP endpoint Effort: go/cx7-mctp-link-recover Add recoverEndponit function to detect removed MCTP endpoints and try to re-assign the same EID to the device. Tested: https://paste.googleplex.com/4685089171308544 Google-Bug-Id: 383145677 Change-Id: Ia465131969dfc11a7ea6cbf3fba0b87456df27c6 Signed-off-by: Jinliang Wang <jinliangw@google.com>