Introduce limited support for arm-none eabi -gcc.
limitations:
- only support ConfigRegression and ConfigDefault configurations
- only support AN521 platform
Introduce limited support for arm-none eabi -gcc.
limitations:
Code merged, following are the review links:
https://review.trustedfirmware.org/#/c/27/
https://review.trustedfirmware.org/#/c/28/
https://review.trustedfirmware.org/#/c/29/