chore(changelog): mention graviton3 support
Related changes:
docs: update supported platforms
added kernel selection
added graviton3 perf baselines
added c7g.metal to baselines tools
- Introduced T2CL (Intel) and T2A (AMD) CPU templates to provide
instruction set feature parity between Intel and AMD CPUs when using
these templates.
+- Added Graviton3 support (c7g instance type).
### Changed
