Update GnssAssistance classes

- Add missing fields for Glonass ephemeris & almanac.
- Define health type for Galileo & Glonass.

Bug: 358381377
Test: atest CtsLocationNoneTestCases
Flag: android.location.flags.gnss_assistance_interface
Change-Id: I3ba66a25a4e6ccb641852e6e31fb9318b4047a04