Suppress clang-analyzer-security.FloatLoopCounter warnings

* Suppress also the alias check name cert-flp30-c.
* These loops don't care about the actual float values,
  just about the behavior for many values over a known range.

Bug: 265171053
Test: presubmit; tidy-frameworks-native-libs-ui-tests_subset
Change-Id: I8c5541d517e27a555998b89c57d5020c789f964f