Fix merge of Changelog 128bit CTR_DRBG entry
Fix merge of Changelog 128bit CTR_DRBG entry

The entry describing support for 128-bit keys in CTR_DRBG was merged into the
wrong version.

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