Fix a bug where device index is not skipped correct.

When checking language/build fingerprint to skip reindex, language check
was comparing Locale object and String object, so they would never be
equal, so we accidentally reindex every time.

- Switched Objects.equal to TextUtils.equal, this catches the error at
compiler level.

Bug: 80065409
Test: compile/robotest
Change-Id: I2b3c68bb1c2fd876338f42321605567d7e64d64b