Inaccurate error code returned for failed call to SecurityManager::init()

[andresag01]

A call to SecurityManager::init() before initialising BLE returns the error code BLE_ERROR_INVALID_PARAM. This is not accurate enough because the API contains an error code BLE_ERROR_INITIALIZATION_INCOMPLETE specific for the situation when the failure is that the necessary API components were not initialised correctly.

[ciarmcom]

ARM Internal Ref: IOTSFW-1772