universal8890: libbauthtzcommon: resolve all Clang compilation warnings

#include <cutils/log.h>

int BAuth_Hat_OP(int arg0, int arg1, int arg2, int arg3, int arg4, int arg5)

int BAuth_Hat_OP(int arg0 __unused, int arg1 __unused, int arg2 __unused, int arg3 __unused, int arg4 __unused, int arg5 __unused)

{

    ALOGW("SHIM: hijacking %s!", __func__);