Upgrade to latest version of TOSA specification

- Updates TOSA specification to the latest version
- Updates generate_api.py to generate the operator API correctly
for ops with additional tensor inputs.
- Removes default arguments for func_debug and func_config to make
the API C compliant again.
- Updates model_runner_tests.cpp for operators that have changed.
- Adds a unit test for the Tile operator to check that generated code
for additional tensor inputs works correctly.

Signed-off-by: Grant Watson <grant.watson@arm.com>
Change-Id: I1e26065c6ed333b2ca4b3da39972d30f896fa6e5