Suppress clang-analyzer-security.FloatLoopCounter warnings

* Suppress also the alias check name cert-flp30-c.
* Leave comment in code for code owners to rewrite
  the loop with integer counters.

Bug: 265171053
Test: presubmit; tidy-system-core-storaged_subset
Change-Id: I8297161366a7a2e1c7cdbec8efb7a8e9e435166a

storaged/tests/storaged_test.cpp

@@ -284,6 +284,8 @@ TEST(storaged_test, disk_stats_monitor) {
     dsm_detect.update_mean();
     dsm_detect.update_std();
 
+    // FixLater: avoid floating point loop counters
+    // NOLINTNEXTLINE(clang-analyzer-security.FloatLoopCounter,cert-flp30-c)
     for (double i = 0; i < 2 * dsm_detect.mSigma; i += 0.5) {
         struct disk_perf test_perf;
         struct disk_perf test_mean = dsm_detect.mMean;