Error Reason log for Activate Provision

Error Reason field is added in the switch firmware as part of Aruba Central Onboarding Feature from 16.07. Error reason log helps in debugging switch firmware for central connectivity failure.

Following table shows the list of error reasons.

Preprocessor Directive	Error Reason
`ACTIVATE_RESP_FAIL_CODE`	Activate provision fails because of invalid response received from server with status code: `%s`.
`ACTIVATE_CURL_FAIL_CODE`	Device fails to reach Activate server with error: `%s`.
`ACTIVATE_FAIL_PROV_NO_DEVICE_ENTRY`	Device is not registered with Activate server.
`ACTIVATE_NON_TPM_CODE_MISSING`	EST provision with activate server fails because of invalid response received from Activate server.