Fixed seed variable concatenation pointer.
Fixed seed variable concatenation pointer.

Signed-off-by: ENT\stroej1 <e4bbd63d352080da08518e14481ff90b7f5eafe8@medtronic.com>

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