Do not log "None" type API accesses.

They do not imply any actual access, so logging them just pollutes the
logs.

Bug: 77517571
Test: m
Test: $ adb lolcat -b events | grep sysui_multi_action

(cherry picked from commit f59ca619ebd1d546b86a50503d02fc4b3a1e7868)

Change-Id: I837030862e24a86f65a004763e32d680de4d2feb
1 file changed