If ASSERT_ALLOC_WEAK fails, mark the test as skipped, not passed
If ASSERT_ALLOC_WEAK fails, mark the test as skipped, not passed

This was the intended behavior of ASSERT_ALLOC_WEAK all along, but
skipping was not implemented yet when ASSERT_ALLOC_WEAK was
introduced.

Mbed-TLS/mbedtls,Mbed-TLS/mbedtls,NXPmicro/mbedtls,ARMmbed/mbedtls,NXPmicro/mbedtls,NXPmicro/mbedtls,ARMmbed/mbedtls,Mbed-TLS/mbedtls,ARMmbed/mbedtls,NXPmicro/mbedtls,ARMmbed/mbedtls,Mbed-TLS/mbedtls