Enable integer_overflow flag for static targets.

This allows the integer_overflow LOCAL_SANITIZE setting to be used with
static targets, to mirror Soong.

Bug: 73283972
Test: make SANITIZE_TARGET{,_DIAG}=integer_overflow
Test: Enabled sanitizer in a static target and tested for SIGABRT.
Change-Id: I0103dc3485b63b86a3dd36a7277b5001813b37fd