Add eventTime print out to Entry dump

Add an eventtime printout for Entry dump. This helps when debugging some
input issues, especially related to batched consumption.

Bug: 160561987
Test: atest inputflinger_tests libinput_tests
Test: adb shell dumpsys input
Change-Id: I5eb3ce1a1ecc22719dd60c90c48021073cdf03f6
2 files changed