heap_caps_check_integrity_addr() function

Check integrity of heap memory around a given address. This function can be used to check the integrity of a single region of heap memory, which contains the given address. This can be useful if debugging heap integrity for corruption at a known address, as it has a lower overhead than checking all heap regions. Note that if the corrupt address moves around between runs (due to timing or other factors) then this approach won't work, and you should call heap_caps_check_integrity or heap_caps_check_integrity_all instead.