Correct comparison for hasBandwidthChanged

Check for equality using Arrays.equals() so that the
bandwith will only be seen as changed when the contents
are actually different.

Bug: 262486676
Test: atest ServiceStateTrackerTest
Merged-In: I10c5b817dba9645d6c8239ec069e0d6de879fdf3
Change-Id: Ic5644378adb2ebc83b5cf2c1a0e3eaa663aa153c