Add FrequencyRange comparator to ServiceState

The FrequencyRange is not comparable beucase it's an enum. This change
add a comparator to ServiceState to make the enum comparable.

Bug: 111453000
Test: atest FrameworksTelephonyTests
Change-Id: I59a595bdaf5451d2c4d95b1b5bdfefcba123fea7
1 file changed