Update yotta dependency version
Update yotta dependency version

We've had a bit of a race between us adapting to changes in 0.3.x and the
sockets author reverting those changes in the 0.3.x line and pushing them to
0.4.0. Let's use the newest and greatest sockets :)

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