Added conversion to int for a t_uint value to prevent compiler warnings
Added conversion to int for a t_uint value to prevent compiler warnings

On 64-bit platforms t_uint can be larger than int resulting in compiler
warnings on some platforms (MS Visual Studio)

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