tests-integration-*: target configuration cleanups
tests-integration-*: target configuration cleanups

Stops duplication of target.components_add config parameter.

kjbracey-arm/mbed,kjbracey-arm/mbed,mbedmicro/mbed,kjbracey-arm/mbed,mbedmicro/mbed,kjbracey-arm/mbed,mbedmicro/mbed,mbedmicro/mbed,mbedmicro/mbed