Work CD-CI
Add MBEDTLS_SOURCE to ESP32 cmake-variants template.
***NO_CI***
"NF_FEATURE_HAS_SDCARD": "ON",
"API_System.Net": "ON",
"NF_SECURITY_MBEDTLS": "ON",
+ "MBEDTLS_SOURCE": "<path-to-mbedtls-source-mind-the-forward-slashes>",
"API_nanoFramework.ResourceManager": "ON",
"API_nanoFramework.System.Collections": "ON",
"API_nanoFramework.System.Text": "ON",
