Set reset_on_fork in setRenderThread as well

Also check the thread scheduler before setting it to SCHED_OTHER | SCHED_RESET_ON_FORK to avoid overhead.

Bug: 370988407
Change-Id: I946f653429978ae2be1c119dd4d99733acd372ff
Flag: com.android.server.am.reset_on_fork_enabled
Test: Build and check with chrt -p [APP_RT_PID]
2 files changed