Immediately notify VM of TOP process state

The delay was introduced to suppress JIT activity during startup.
However, ART no longer uses the expicit process state signal as an input
to informing JIT activity, so the delay can be removed.

By forwarding the process state immediately, ART can make more informed
decisions about activity based on process state, e.g., suppressing
madvise calls for less important (non-foreground) processes.

Bug: 235390330
Test: m + presubmit + boot tests
Change-Id: Ia95a76f86cf4c38bf89e56f954dbf59e0083ec50
Merged-In: Ia95a76f86cf4c38bf89e56f954dbf59e0083ec50