Fix the service binding skipOomAdj logic

We're skipping oom adj updates if it's a self-binding or a binding
from a less important process. The callsites of these skipped oom adj
updates are mainly around the bumpServiceExecutingLocked()
and the serviceDoneExecutingLocked(). The previous CL tried to
skip the oom adj updates in the latter one if it was skipped in the
former one - however there are some missing paths in the accounting
which caused the necessary oom adj update is skipped unexpectedly.
Now fix this issue.

Bug: 325586149
Bug: 325658306
Test: atest CtsAppBindingHostTestCases:AppBindingHostTest
Test: atest CtsAppTestCases:ActivityManagerTest
Test: atest \
FrameworksMockingServicesTests: ServiceBindingOomAdjPolicyTest
Change-Id: I47e49653eb4a5dc4f9ff59ae15d56ba615d9e7fc