Attempt native rollback for frequent crashes before boot completed

Before, if updatable processes crash 4 times in 4mins, a native
rollback will be attempted. This behavior does not detect
system_server early boot deadlocks because the system server requires
at least a min to detect a deadlock, and crash itself. The crashes
don't happen frequently enough for init to detect.

After, this cl, the old behavior exists and additionally, init detects
*any* 4 crashes of updatable processes before boot completed,
regardless of if they happen within 4mins or not.

Test: Manually tested by adding artificial sleep in system_server so
deadlock is triggered before boot. system_server crashes 4 times in
over 4mins and the ro.init.updatable_crashing prop is set to 1.
Bug: 129597207

Change-Id: Ie6fb5693ff4be105bcbe139c22850fb076e40260