Don't send MAP SMS/MMS messages older than one year

If SMS or MMS message is greater than one year old, skip sending the
message event. Switch Mms.DATE field to milliseconds since it is stored
by telephony in seconds: https://source.corp.google.com/tm-dev/packages/services/Mms/src/com/android/mms/service/MmsService.java;l=810?q=mms.date%20seconds

Bug: 196731316
Bug: 264913373
Test: QA, manual send and receive SMS and MMS messages on carkit
Change-Id: I811089b5546e4b2c51399b2e94cf7aa75377fb2e
(cherry picked from commit aae20216)