Enable overriding session priority

* Added '-q' option when starting a fira session to set session priority.

* When opening a new session, if the provided session_priority is
different than the default 50 then use the provided value instead of
calculating session_priority based on the calling app/service.

Bug: 282739552
Test: atest ServiceUwbTests
(cherry picked from https://android-review.googlesource.com/q/commit:54aa905a0e52126884f8069c2f417bdd2bfaaf77)
Merged-In: I67d1c29aca8d41e3cc8a43e2b9c88d2da218dcd9
Change-Id: I67d1c29aca8d41e3cc8a43e2b9c88d2da218dcd9
3 files changed