pixelstats: WaterEventReporter add second path

The second vendor for the chip has a different path. Update the value to
a vector and add the additional path.  Since the uevent code will always
provide the single path, only the boot logging case needs to be updated.

Test: Logs from device with second vendor
Bug: 402163612
Change-Id: Ie948ee85bf189afd3cf0b4df6576cd55d7abdd94
Signed-off-by: Jim Wylder <jwylder@google.com>
3 files changed