bootstat: Add a few more bootreasons and rebase the index against index 1.

This is necessary to match the mapping in the internal infrastructure.

Bug: 21724738
Change-Id: I292166ff5c0dea7f3d771627120f16af4c56073b
(cherry picked from commit 6f74c0b8433626a8565c07ba7fd2cb4fdebba880)
1 file changed