[Test] Fix integer expression errors in ASAN log checker

[Test] Fix integer expression errors in ASAN log checker

Replace grep -c with wc -l to avoid malformed output when grep
returns results with filenames or multiple lines. The grep -c
command was producing output like "0\n0" instead of a single
integer, causing bash comparison failures.

Use wc -l with tr to ensure clean integer values, and add
error suppression to comparison operators for robustness.